The Corsair HX1000i Power Supply delivers exceptional 80 PLUS Platinum efficient power and low-noise fluid dynamic bearing fan performance. ATX 3.0 and PCIe 5.0 compliance, HXi PSUs have every connection needed to power today’s most demanding PC upgrades. Powerful Corsair iCUE software enables custom fan curves, monitoring and adjusting power settings, and more thanks to a fully digital platform. Japanese 105°C-rated electrolytic capacitors deliver long life and reliability. Wake your computer faster and consume less power with Modern Standby sleep mode. Zero RPM mode ensures near-silent operation at low and medium loads.
The Corsair HX1000i Power Supply delivers exceptional 80 PLUS Platinum efficient power and low-noise fluid dynamic bearing fan performance. ATX 3.0 and PCIe 5.0 compliance, HXi PSUs have every connection needed to power today’s most demanding PC upgrades. Powerful Corsair iCUE software enables custom fan curves, monitoring and adjusting power settings, and more thanks to a fully digital platform. Japanese 105°C-rated electrolytic capacitors deliver long life and reliability. Wake your computer faster and consume less power with Modern Standby sleep mode. Zero RPM mode ensures near-silent operation at low and medium loads.
Corsair HX1000i Platinum Modular 1000W Power Supply
The Corsair HX1000i Power Supply delivers exceptional 80 PLUS Platinum efficient power and low-noise fluid dynamic bearing fan performance. ATX 3.0 and PCIe 5.0 compliance, HXi PSUs have every connection needed to power today’s most demanding PC upgrades. Powerful Corsair iCUE software enables custom fan curves, monitoring and adjusting power settings, and more thanks to a fully digital platform. Japanese 105°C-rated electrolytic capacitors deliver long life and reliability. Wake your computer faster and consume less power with Modern Standby sleep mode. Zero RPM mode ensures near-silent operation at low and medium loads.
The Corsair HX1000i Power Supply delivers exceptional 80 PLUS Platinum efficient power and low-noise fluid dynamic bearing fan performance. ATX 3.0 and PCIe 5.0 compliance, HXi PSUs have every connection needed to power today’s most demanding PC upgrades. Powerful Corsair iCUE software enables custom fan curves, monitoring and adjusting power settings, and more thanks to a fully digital platform. Japanese 105°C-rated electrolytic capacitors deliver long life and reliability. Wake your computer faster and consume less power with Modern Standby sleep mode. Zero RPM mode ensures near-silent operation at low and medium loads.
in 5 offers
The lowest price for Corsair HX1000i Platinum Modular 1000W Power Supply right now is $293.73 at PB Tech, compared across 5 retailers.
The all-time low was $271.66 on 12 Feb 2026 — today's price is 8% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 25 June 2026.
Last updated at 25/06/2026 10:30:16
Corsair HX Series HX1000i Platinum 1000W Power Supply 80 Plus Platinum - Ultra-Low Noise - Full Modular,ATX 3.0 and PCIe 5.0 compliance
7-day returns
Corsair HX1000i - 1000W Platinum ATX Modular PSU
Delivery between 29 June – 8 July $19.98
Corsair HX1000i Fully Modular Ultra-Low Noise Platinum ATX 1000W PC Power Supply (AU), 8x SATA, 2x EPS, 8x PATA, 5x PCIe, 140mm Fan Size, ATX12V 3.1
Delivery $10
Corsair HX1000i ATX Platinum Power Supply
Free delivery
Corsair 1000W HX1000i SHIFT Cybenetics Platinum Fully Modular PCIe 5.1 ATX 3.1 Power Supply (CP-9020265-AU)
Delivery $25
originally posted on newegg.com
This product inspired a wild doubt in my mind. When I tried to install it, I thought, maybe I lack finesse. Perhaps I lack the knowledge necessary to put together one whole computer and have it function. Such wild doubt, I began to think I should really just kill myself because I can't manage such a simple task as plugging in a couple cables into the appropriate congruent ports. But both times this product has failed me, I have managed to revive my machine by reinstalling a different power supply. Two out of two times I've resolved my issue with a part replacement. Two out of two times I had another component die. Corsair, do yourself a favor and just take this product off the market. 0 out of 5 eggs, if that was an option it's what I'd give.
originally posted on neweggbusiness.com
Pricing of the Hx1000i might be perceived as extremely high but you obviously get what you pay for. Corsair web site as usual is easily accessible 24x7 and support is top notch. I have a Corsair H100i CPU water cooler and have never had a issue which speaks volumes about Corsair quality. Do not be overly alarmed if the fan on this Corsair Hx1000i power supply hardly ever spins...this power supply is "that" efficient! You can, however, proactively increase the longevity of this high end investment by blowing out your workstation case/power supply/video cardfan a minimum of twice a year with a good air compressor. I normally perform this preventative maintenance task in late Fall (before Winter when it's a PITA to drag out the compressor) and especially before Summer ... MorePricing of the Hx1000i might be perceived as extremely high but you obviously get what you pay for. Corsair web site as usual is easily accessible 24x7 and support is top notch. I have a Corsair H100i CPU water cooler and have never had a issue which speaks volumes about Corsair quality. Do not be overly alarmed if the fan on this Corsair Hx1000i power supply hardly ever spins...this power supply is "that" efficient! You can, however, proactively increase the longevity of this high end investment by blowing out your workstation case/power supply/video cardfan a minimum of twice a year with a good air compressor. I normally perform this preventative maintenance task in late Fall (before Winter when it's a PITA to drag out the compressor) and especially before Summer (when pc components are under extreme heat running during the hottest months of the year). Be amazed how much dust/dust bunnies is expelled when you use a good air compressor versus a can of compressed air! I'm not overly enthusiastic ever using a toothbrush like others for cleaning pc parts (it introduces risk of static electricity to delicate components) As usual, Newegg shipping and tracking is stellar ... UPS tracking numbers are issued in a promptly manner by Newegg allowing me to status location and delivery times until actual delivery is made to my doorstep.....kudos again Newegg!
originally posted on overclockers.co.uk
Purchased this PSU to power a GeForce RTX 4090. After initially installing the PSU and using the supplied cables, neither the CPU water cooler and HDDs would power up. After exhausting all checks I finally swapped out the supplied cables and used existing ones from another CPU, all affected components fired up ans worked as required. This really raises concern over the PSU cables supplied with the PSU and leaves me with a nagging feeling that I may have issues down the line with the PSU. I hope my concerns are misguided. I can only give this product one star due to these issues I encountered.
| Fan Bearing Technology | Fluid Dynamic Bearing |
| Modular | Fully |
| PSU Form Factor | ATX |
| Warranty Period | 10 Years Warranty |
Corsair HX Series HX1000i Platinum 1000W Power Supply 80 Plus Platinum - Ultra-Low Noise - Full Modular,ATX 3.0 and PCIe 5.0 compliance
7-day returns
Corsair HX1000i - 1000W Platinum ATX Modular PSU
Delivery between 29 June – 8 July $19.98
Corsair HX1000i Fully Modular Ultra-Low Noise Platinum ATX 1000W PC Power Supply (AU), 8x SATA, 2x EPS, 8x PATA, 5x PCIe, 140mm Fan Size, ATX12V 3.1
Delivery $10
Corsair HX1000i ATX Platinum Power Supply
Free delivery
Corsair 1000W HX1000i SHIFT Cybenetics Platinum Fully Modular PCIe 5.1 ATX 3.1 Power Supply (CP-9020265-AU)
Delivery $25
This product inspired a wild doubt in my mind. When I tried to install it, I thought, maybe I lack finesse. Perhaps I lack the knowledge necessary to put together one whole computer and have it function. Such wild doubt, I began to think I should really just kill myself because I can't manage such a simple task as plugging in a couple cables into the appropriate congruent ports. But both times this product has failed me, I have managed to revive my machine by reinstalling a different power supply. Two out of two times I've resolved my issue with a part replacement. Two out of two times I had another component die. Corsair, do yourself a favor and just take this product off the market. 0 out of 5 eggs, if that was an option it's what I'd give.
Pricing of the Hx1000i might be perceived as extremely high but you obviously get what you pay for. Corsair web site as usual is easily accessible 24x7 and support is top notch. I have a Corsair H100i CPU water cooler and have never had a issue which speaks volumes about Corsair quality. Do not be overly alarmed if the fan on this Corsair Hx1000i power supply hardly ever spins...this power supply is "that" efficient! You can, however, proactively increase the longevity of this high end investment by blowing out your workstation case/power supply/video cardfan a minimum of twice a year with a good air compressor. I normally perform this preventative maintenance task in late Fall (before Winter when it's a PITA to drag out the compressor) and especially before Summer ... MorePricing of the Hx1000i might be perceived as extremely high but you obviously get what you pay for. Corsair web site as usual is easily accessible 24x7 and support is top notch. I have a Corsair H100i CPU water cooler and have never had a issue which speaks volumes about Corsair quality. Do not be overly alarmed if the fan on this Corsair Hx1000i power supply hardly ever spins...this power supply is "that" efficient! You can, however, proactively increase the longevity of this high end investment by blowing out your workstation case/power supply/video cardfan a minimum of twice a year with a good air compressor. I normally perform this preventative maintenance task in late Fall (before Winter when it's a PITA to drag out the compressor) and especially before Summer (when pc components are under extreme heat running during the hottest months of the year). Be amazed how much dust/dust bunnies is expelled when you use a good air compressor versus a can of compressed air! I'm not overly enthusiastic ever using a toothbrush like others for cleaning pc parts (it introduces risk of static electricity to delicate components) As usual, Newegg shipping and tracking is stellar ... UPS tracking numbers are issued in a promptly manner by Newegg allowing me to status location and delivery times until actual delivery is made to my doorstep.....kudos again Newegg!
Purchased this PSU to power a GeForce RTX 4090. After initially installing the PSU and using the supplied cables, neither the CPU water cooler and HDDs would power up. After exhausting all checks I finally swapped out the supplied cables and used existing ones from another CPU, all affected components fired up ans worked as required. This really raises concern over the PSU cables supplied with the PSU and leaves me with a nagging feeling that I may have issues down the line with the PSU. I hope my concerns are misguided. I can only give this product one star due to these issues I encountered.
Unpacking this piece of hardware, I have to say that it is ARMED TO THE TEETH with cables. I have never had a modular PSU so maybe this is a standard thing- still I was amazed that how much cables it had. I don't have a too high end of a machine but still, needing to get molex to SATA converters is annoying and now I can finally get rid of them thanks to this PSU! Looking into the grilles, the PSU has HUGE capacitors. Review websites indicate that it has very high quality caps so this PSU should last for quite some time and perform quite well under the most stressful conditions. The weight of this thing is solid. It's priced as a quality product and it looks and feels like a quality product. At 83.3 amps of 12V, you get 999.6W on the 12V line alone. A good sign that ... MoreUnpacking this piece of hardware, I have to say that it is ARMED TO THE TEETH with cables. I have never had a modular PSU so maybe this is a standard thing- still I was amazed that how much cables it had. I don't have a too high end of a machine but still, needing to get molex to SATA converters is annoying and now I can finally get rid of them thanks to this PSU! Looking into the grilles, the PSU has HUGE capacitors. Review websites indicate that it has very high quality caps so this PSU should last for quite some time and perform quite well under the most stressful conditions. The weight of this thing is solid. It's priced as a quality product and it looks and feels like a quality product. At 83.3 amps of 12V, you get 999.6W on the 12V line alone. A good sign that this power supply means business when it comes to providing huge amounts of power for high end gaming set up. Installation was easy, no different than any other power supply. As noted above, if you haven't bought a high end PSU like this- this is a little longer than what you would find on OEM, low end, mid range PSUs. I could see running into space issues on a mid size ATX case. The replacing power supply is actually a corsair in my system. This, like the one it replaced, is super quiet. No complaints about noise. Line power draw is actually less at 280W vs 300W at full load- most likely stemming from this being 80PLUS platinum. I haven't had a chance to try out the corsair link program- basically a cable that connects to your PC and you can monitor the PSU via free software you can download from Corsair. The only negative I can think of, is that this power supply smelled absolutely terrible when I opened the plastic wrap it was in. Absolutely awful. Perhaps it was manufactured that fresh out of the factory but it was pretty pungent enough for me to add it in here. I have never had a power supply smell that bad when I got it. If you are sensitive to chemical smells- be warned. You may sniff something unpleasant when you open this and it may last for a few days once the PSU gets aired out. A very nice power supply overall- just like you would expect from Corsair! You're still reading? Hit the buy button instead :]
I have deducted 1 star based on missing one of the CPU Cables. The Quality alone is worth 5 stars, and I understand mistakes happen, so I was giving them a pass on the deduction. However, after receiving the replacement cables (It took 18 days) they were standard braided cables. Not only that, one of them wouldn't even plug into the PSU itself, as it is keyed wrong. (Edit** Awaiting reply on a replacement cable. Seems that Corsair wants you to jump through hoops to get it. Depending on the next interaction, I may have to adjust my rating of this overall.) (Edit** Today I finally received my missing cable in the mail. Corsair was nice enough to send me two of them. Then I realized, they aren't the flat cables like came with the unit. They are the normal single ... MoreI have deducted 1 star based on missing one of the CPU Cables. The Quality alone is worth 5 stars, and I understand mistakes happen, so I was giving them a pass on the deduction. However, after receiving the replacement cables (It took 18 days) they were standard braided cables. Not only that, one of them wouldn't even plug into the PSU itself, as it is keyed wrong. (Edit** Awaiting reply on a replacement cable. Seems that Corsair wants you to jump through hoops to get it. Depending on the next interaction, I may have to adjust my rating of this overall.) (Edit** Today I finally received my missing cable in the mail. Corsair was nice enough to send me two of them. Then I realized, they aren't the flat cables like came with the unit. They are the normal single braided ones. To make matters even worse, one of them will not even plug into the unit. I have been a HUGE Corsair fan for many years now, but if it takes 18 days to receive a cable that I was missing in my unit, then it isn't the correct cable, there is a problem.) (Final Edit*** I give the product a total score of 5, as Corsair products, even refurbished, work amazing. I deduct 1 star from the final product only because I was missing a cable, and the replacement they sent me was not the same type of cable that came with the unit. The product itself is above expectations.)
For the past 8 years I’ve been using a Zalman ZM1000-HP. It’s been a good PSU but finally started giving me trouble recently. The Zalman PSU is 80+ Bronze certified and I was curious to see how that compared with the other grades in that certification program. I recently reviewed a Rosewill 1200W 80+ Gold PSU (which I sold to a friend right before the Zalman started acting up), so I have a bit of a comparison already. I decided to give Platinum a try and this Corsair model is what I ended up with. I measure total system power draw via a CyberPower 1500PFCLCD UPS which drives my entire system. The UPS seems to display power output in increments of 9W, so my numbers aren’t incredibly accurate, but should still give a good relative sense of comparative efficiency ... MoreFor the past 8 years I’ve been using a Zalman ZM1000-HP. It’s been a good PSU but finally started giving me trouble recently. The Zalman PSU is 80+ Bronze certified and I was curious to see how that compared with the other grades in that certification program. I recently reviewed a Rosewill 1200W 80+ Gold PSU (which I sold to a friend right before the Zalman started acting up), so I have a bit of a comparison already. I decided to give Platinum a try and this Corsair model is what I ended up with. I measure total system power draw via a CyberPower 1500PFCLCD UPS which drives my entire system. The UPS seems to display power output in increments of 9W, so my numbers aren’t incredibly accurate, but should still give a good relative sense of comparative efficiency between these PSU’s. With the Zalman PSU my current PC build would idle @ ~315W, and draw ~531W during load. The Rosewill would idle @ ~297W, and draw ~513W during load. Finally, this Corsair HX1000i idles @ ~279W, and draws ~477W during load. These results seem significant to me. Going from a Bronze rated PSU to gold results in an 18W improvement in both idle and load performance. Going from Gold to Platinum results in yet another 18W improvement for idle and 36W for load. That results in a 36W idle difference between Bronze and Platinum and 54W for load. I have reason to suspect that these differences would be even greater with systems that draw more power. In terms of how much you can save on your electric bill it really depends on how often and how hard you run your system. In my area electricity costs $0.0958/KWh, so if I let me system idle 24/7 then this PSU would save me ~$15/yr when compared with my old Bronze PSU. If I let it idle constantly but also game about 3 hours a day then the savings get close to $19/yr. Granted, my usage is much more casual with ~1hr of gaming per day and ~5hr idle usage, which results in ~$5/yr savings. So, not huge… but if you use this PSU for the full 10yr warranty then it will probably end up being LESS expensive than most of the cheap PSU’s out there. Moral of the story: If you’re deciding between a Bronze and Platinum PSU and you plan to use it for years then definitely go Platinum if it’s no more than $50 difference – you’ll probably save more than that in the long run. Overall I’m very pleased with this PSU. It is probably a higher wattage rating than most people need (probably too high for my system if I’m honest), PSU’s are most efficient at ~50% of their rated capacity, so you should pick a PSU that is rated about double the power your system typically draws. The 750, 850, and 1200 watt models of this series appear to be of equal quality and features. Regardless of what you pick, give this one a chance – it won’t disappoint.
UNBOXING Comes with a sealable, mini-bag that includes 10x 4" black zip-ties, a square medallion with the phrase "Powered by Corsair" and the Corsair logo in the middle, and 4x black screws for mounting PSU to the back of the computer case - or wherever your case PSU fits. A Corsair warranty guide book (limited liability warranty) of 7 years 1 AC wire - 300v 14 gauge wire Cables are in a small, sealable (velcro) bag. Cables are flat instead of typical round which could be viewed as a good thing or a bad thing - depends on your preference. The PSU is contained in a sealable (rope around the rim and pinch-lock, plastic apparatise for keeping bad from opening) bag 1x 24 pin ATX cable 1x 8 pin (4x4) 650mm 1x 8 pin (4x4) 800mm 4x PCIe 8 pin (6x2) 600mm, 750mm 2x SATA ... MoreUNBOXING Comes with a sealable, mini-bag that includes 10x 4" black zip-ties, a square medallion with the phrase "Powered by Corsair" and the Corsair logo in the middle, and 4x black screws for mounting PSU to the back of the computer case - or wherever your case PSU fits. A Corsair warranty guide book (limited liability warranty) of 7 years 1 AC wire - 300v 14 gauge wire Cables are in a small, sealable (velcro) bag. Cables are flat instead of typical round which could be viewed as a good thing or a bad thing - depends on your preference. The PSU is contained in a sealable (rope around the rim and pinch-lock, plastic apparatise for keeping bad from opening) bag 1x 24 pin ATX cable 1x 8 pin (4x4) 650mm 1x 8 pin (4x4) 800mm 4x PCIe 8 pin (6x2) 600mm, 750mm 2x SATA cable (15 pin) 500mm, 600mm, 700mm, 800mm 1x SATA cable (15 pin) 550mm, 650mm, 750mm, 850mm 3x Peripheral cable (4 pin) 450mm, 550mm, 650mm, 750mm 2x Floppy adapter (4 pin) 101mm 1x PMBus cable 800m 1x USB cable 800mm VOLTAGE TESTING In my current PC build I have a competitor's product that is also rated 80 Plus Platinum but rated for 1275 Watts, not fully modular (24 pin and couple SATA cables permenantly attached and also has "fanless mode", which just like this PSU the fan won't kick on until ~40% load) and have never had an issue in the 2 years that I have owned it. I have the Thermaltake Dr. Power II for PSU testing. I plugged in the CPU, PCI-E, Molex, SATA and 24 pink and the voltage read-out was excellent! The read-out was as follows: +5.0v = 5 +12v = 12.1 +3.3v = 3.2 -12v = 12.3 5vsb = 5 - (standby power for those who don't know) PG = 372 - (should be between 100 and 500ms) Sadly, I do not have a manual load tester so I can see what the voltage output is of my unit at different loads to verify my PSU with what Corsair and tech-review sites have found - Corsair does provide a load/efficiency graph with the included guide book that comes in the package. I did not hook this up to my actual desktop machine to test out the "Corsair Link" and related PC software but from what screenshots I have seen it is pretty neat to keep tabs on how/what your PSU is doing (I know another competitor has something similar but I don't own it nor have tested it). FINAL THOUGHTS Not much to say really. This is of solid build quality with excellent voltage read-out! While some may think that this is an expensive unit rest assure that you are getting a top-quality product that should last you many years (7 years warranty!!!
The HX1000i is a pretty nice PSU especially coming from a CX750. The HX1000i comes with more than enough connecters. However, I would've liked braided cables for aesthetics, but the flat cables they supplied work just fine. It's very quiet even when under load as I can barely hear it over my GPU's and case fans. Only thing that I found a bit unsettling was how warm it gets and the fan still doesn't spin. This is because the HX1000i's fan will only spin upon a certain load. In my area there has been a slight rise in ambient temperatures and since I don't have much empty space in my R4, the HX1000i adds a considerable amount of heat into the case. But it isn't an issue once the weather cools down a bit. And finally, the con. The software, Corsair Link, for monitoring ... MoreThe HX1000i is a pretty nice PSU especially coming from a CX750. The HX1000i comes with more than enough connecters. However, I would've liked braided cables for aesthetics, but the flat cables they supplied work just fine. It's very quiet even when under load as I can barely hear it over my GPU's and case fans. Only thing that I found a bit unsettling was how warm it gets and the fan still doesn't spin. This is because the HX1000i's fan will only spin upon a certain load. In my area there has been a slight rise in ambient temperatures and since I don't have much empty space in my R4, the HX1000i adds a considerable amount of heat into the case. But it isn't an issue once the weather cools down a bit. And finally, the con. The software, Corsair Link, for monitoring the loads and temperature for the PSU works, but it feels super buggy and it seems like it's been this way for a while. But again, this is a software issue. Other than that the HX1000i is a pretty good investment with great power and efficiency.
What would be a lot more helpful would be the Logo(s) of the Central Processing Unit, cpu, next to the power supply, ps. On the store page@Newegg or Anywhere! The word Crossfire means both for Radeon for AMD And Intel. It wasn't until I bought it that I realized after it's failure to stay on that Crossfire was used w/Radeon AND INTEL, Not just AMD. I thought this was an AMD thing. So reading the Corsair Page, something I should of probably done first I realized my mistake. I Actually I spent 16 years in Marketing and I KNOW this type of error should Never happen to a shopper. The information was not enough and cost time and money. Try this: Place the LOGO of the cpu it works with next to product. If it uses an INTEL chip ONLY, put the INTEL LOGO ONLY next to it. If ... MoreWhat would be a lot more helpful would be the Logo(s) of the Central Processing Unit, cpu, next to the power supply, ps. On the store page@Newegg or Anywhere! The word Crossfire means both for Radeon for AMD And Intel. It wasn't until I bought it that I realized after it's failure to stay on that Crossfire was used w/Radeon AND INTEL, Not just AMD. I thought this was an AMD thing. So reading the Corsair Page, something I should of probably done first I realized my mistake. I Actually I spent 16 years in Marketing and I KNOW this type of error should Never happen to a shopper. The information was not enough and cost time and money. Try this: Place the LOGO of the cpu it works with next to product. If it uses an INTEL chip ONLY, put the INTEL LOGO ONLY next to it. If it works with just the AMD chip only, then put the AMD LOGO there Only! If it works with both, put BOTH LOGOS there,(Some power supplies actually work with both I-n-c-I-d-e-n-t-l-y). This purchase was a waste of my time and money, however I learned something too. I, for a moment, was considering building an INTEL computer because of this cool secret technology stuff. But Nah! !!! I am LOYAL to AMD!
| Fan Bearing Technology | Fluid Dynamic Bearing |
| Modular | Fully |
| PSU Form Factor | ATX |
| Warranty Period | 10 Years Warranty |
