Silicon Power Superior Pro 512GB microSDXC UHS-I/U3 Memory Card With Adapter, SP512GBSTXDU3V20AB Microsd Cards
Capture Every Second In 4K Ultra HD Looking to record outdoor adventures, weekend trips, or sporting events without missing any action? With UHS Speed Class 3 (U3) and Video Speed Class 30 (V30), the Superior Pro microSDXC UHS-I card allows you to capture uninterrupted 4K Ultra HD videos. Furthermore, read and write speeds up to 100 and 80 MB/s, respectively, ensure that you’re spending more time recording and less time waiting. Say Goodbye To Slow Apps With an A1 rating, the Superior Pro microSDXC UHS-I card is optimized for app performance. Minimum random read of 1,500 IOPS and random write of 500 IOPS equate to faster launches and enhanced operation. This translates to an overall superior user experience on your Android-based smartphone, tablet, and other app-running mobile devices. It also saves internal storage space on your device.
Capture Every Second In 4K Ultra HD Looking to record outdoor adventures, weekend trips, or sporting events without missing any action? With UHS Speed Class 3 (U3) and Video Speed Class 30 (V30), the Superior Pro microSDXC UHS-I card allows you to capture uninterrupted 4K Ultra HD videos. Furthermore, read and write speeds up to 100 and 80 MB/s, respectively, ensure that you’re spending more time recording and less time waiting. Say Goodbye To Slow Apps With an A1 rating, the Superior Pro microSDXC UHS-I card is optimized for app performance. Minimum random read of 1,500 IOPS and random write of 500 IOPS equate to faster launches and enhanced operation. This translates to an overall superior user experience on your Android-based smartphone, tablet, and other app-running mobile devices. It also saves internal storage space on your device.
Capture Every Second In 4K Ultra HD Looking to record outdoor adventures, weekend trips, or sporting events without missing any action? With UHS Speed Class 3 (U3) and Video Speed Class 30 (V30), the Superior Pro microSDXC UHS-I card allows you to capture uninterrupted 4K Ultra HD videos. Furthermore, read and write speeds up to 100 and 80 MB/s, respectively, ensure that you’re spending more time recording and less time waiting. Say Goodbye To Slow Apps With an A1 rating, the Superior Pro microSDXC UHS-I card is optimized for app performance. Minimum random read of 1,500 IOPS and random write of 500 IOPS equate to faster launches and enhanced operation. This translates to an overall superior user experience on your Android-based smartphone, tablet, and other app-running mobile devices. It also saves internal storage space on your device.
Capture Every Second In 4K Ultra HD Looking to record outdoor adventures, weekend trips, or sporting events without missing any action? With UHS Speed Class 3 (U3) and Video Speed Class 30 (V30), the Superior Pro microSDXC UHS-I card allows you to capture uninterrupted 4K Ultra HD videos. Furthermore, read and write speeds up to 100 and 80 MB/s, respectively, ensure that you’re spending more time recording and less time waiting. Say Goodbye To Slow Apps With an A1 rating, the Superior Pro microSDXC UHS-I card is optimized for app performance. Minimum random read of 1,500 IOPS and random write of 500 IOPS equate to faster launches and enhanced operation. This translates to an overall superior user experience on your Android-based smartphone, tablet, and other app-running mobile devices. It also saves internal storage space on your device.
in 3 offers
The lowest price for Silicon Power Superior Pro 512GB microSDXC UHS-I/U3 Memory Card With Adapter, SP512GBSTXDU3V20AB Microsd Cards right now is $149.00 at Amazon.com.au, compared across 3 retailers.
The all-time low was $39.00 on 29 July 2025 — today's price is 282% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 7 June 2026.
Last updated at 07/06/2026 13:43:32
Silicon Power 512GB microSDXC UHS-I Micro SD Card with Adapter, Up to 100MB/s Read & 80MB/s Write, C10 U3 V30 A1 4K UHD Video, High Speed microSD
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Silicon Power Superior PRO 4K HD 512GB Micro SDXC Card 100MB s Read & 80MB s Write U3 C10 A1 V30 with Adapter - Micro SD Cards
Delivery $12.44
Silicon Power Superior PRO 4K HD 512GB Micro SDXC Card 100MB s Read & 80MB s Write U3 C10 A1 V30 with Adapter - Micro SD Cards
Delivery $11
originally posted on bhphotovideo.com
After l researched I wanted to purchase a relatively inexpensive 512 gig from a REPUTABLE vendor. They would likely have tested there product they sell. B&H is my go to store for that. The card arrived promptly and it has performed perfectly as I thought it would. No need to spend more money than you have to. But spend enough for reliability. Thank you B&H.
originally posted on bhphotovideo.com
I am using this card in my Samsung 20 . Did an accurate benchmark and the speed test was, read: 66mb/s write: 63mb/s. All this performance (and space), with an A2 app rating, considering that no high speed adapter was used, is amazing. It's a great option and it really stands up to its competitors! Extremely satisfied. Thank you B&H!!
originally posted on bhphotovideo.com
I've used Silicon Power cards for some time. The UHS-I cards are veryfast. I've never had one fail from use. The 128GB card will be used inmy camera and it handles the speed of video and multi-shot stillsflawlessly.
| Manufacturer Warranty | 5 Year |
| Capacity | 64GB, 128GB, 256GB, 512GB |
| Dimensions | 15.0mm x 11.0mm x 1.0mm |
| Performance Read(max.) | 100MB/s |
| Performance Write(max.) | 80MB/s |
Silicon Power 512GB microSDXC UHS-I Micro SD Card with Adapter, Up to 100MB/s Read & 80MB/s Write, C10 U3 V30 A1 4K UHD Video, High Speed microSD
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Silicon Power Superior PRO 4K HD 512GB Micro SDXC Card 100MB s Read & 80MB s Write U3 C10 A1 V30 with Adapter - Micro SD Cards
Delivery $12.44
Silicon Power Superior PRO 4K HD 512GB Micro SDXC Card 100MB s Read & 80MB s Write U3 C10 A1 V30 with Adapter - Micro SD Cards
Delivery $11
After l researched I wanted to purchase a relatively inexpensive 512 gig from a REPUTABLE vendor. They would likely have tested there product they sell. B&H is my go to store for that. The card arrived promptly and it has performed perfectly as I thought it would. No need to spend more money than you have to. But spend enough for reliability. Thank you B&H.
I am using this card in my Samsung 20 . Did an accurate benchmark and the speed test was, read: 66mb/s write: 63mb/s. All this performance (and space), with an A2 app rating, considering that no high speed adapter was used, is amazing. It's a great option and it really stands up to its competitors! Extremely satisfied. Thank you B&H!!
I've used Silicon Power cards for some time. The UHS-I cards are veryfast. I've never had one fail from use. The 128GB card will be used inmy camera and it handles the speed of video and multi-shot stillsflawlessly.
I got this Silicon Power card as a replacement for an older Windows tablet that only takes microSD cards. I wasn't concerned if it was a little slower than the SanDisk it was replacing as I'd mostly just be using it for storage; not running programs off it. I was please to see that if anything, it's notably faster than the 400GB card it was replacing. For the price, I think I got a bargain!
So I decided to bite the bullet and get an A1 rated SD card for my raspberry pi. This replaced a Samsung EVO I'd been using for a while. I've got to say that the hype is, maybe not totally real, at least justified.It made the raspberry pi much snapper when doing anything IO related. How much snappier? I haven't quantified it but it makes installing software and updating files MUCH more responsive.Really works like a charm!
I bought the card for my Galaxy Z Flip and transferred all my data from my 128gb card to this larger card for space. A week later, I started having write errors before the card was unreadable by my phone. The card was unreadable in my backup phone or my laptop I put It in to backup my data. OVER 100 GIGS OF DATA LOSS. Do not buy. Stay with trusted brands like SanDisk or Lexar because the $2-5 saved is NOT worth the loss of irreplaceable photos or data.
I have several Micro SD cards for various applications including expanding the storage for an aging Microsoft Surface 2 computer. I have a Samsung Evo 512gb and this SP 512gb; the SP is the slower card. the Samsung shows 512gb, but the SP is 477gb; that's a loss of 7%. I think that is just a reporting difference as Crystal Reports shows the same size. In terms of real world; the SP can play back HD video without any issues and file transfers are decent, just not as fast as the Samsung.
Bought a couple of these and a 512 as well. This one holds wav file audio from a studio that I need while on the road. It's much more convenient to back up to this card and carry the audio with me, than to wait for it to transfer to my computer. Plus a good backup if my computer crashes again. Again? That's another story...
I've been a Samsung EVO Select devotee for a couple of years. They work well in cameras, giving really good read speeds for downloading photos. However, cameras and read speeds aren't the only use and metric for a memory card. Come to find out, the EVO Select isn't good at all for writing lots of small files in the range of 4 to 6 MB. Think of putting lots of MP3s or MP4s (music) on the card for on the go listening. With lots of files in the 4 to 6 MB range, speed is abysmal; in the 25 MB/s range. Thousands of files will take quite a while.Here's my surprise. The Silicon Power Superior U3 A2, 256GB in my case, gobbles up those same files at around 50 MB/s. Yes, double the speed. Less expensive, just as fast on large files, and double the speed on smaller files? ... MoreI've been a Samsung EVO Select devotee for a couple of years. They work well in cameras, giving really good read speeds for downloading photos. However, cameras and read speeds aren't the only use and metric for a memory card. Come to find out, the EVO Select isn't good at all for writing lots of small files in the range of 4 to 6 MB. Think of putting lots of MP3s or MP4s (music) on the card for on the go listening. With lots of files in the 4 to 6 MB range, speed is abysmal; in the 25 MB/s range. Thousands of files will take quite a while.Here's my surprise. The Silicon Power Superior U3 A2, 256GB in my case, gobbles up those same files at around 50 MB/s. Yes, double the speed. Less expensive, just as fast on large files, and double the speed on smaller files? Sign me up!For the record, I'm using the ProGrade Digital Dual-Slot UHS-II SDXC USB 3.1 Gen 2 Type-C Card Reader, purchased from B&H, of course. Awesome card reader, BTW.
Kids had run out of room in the internal memory and there is only one slot in the switch. Seemed like, for the cost, might as well put in this larger size memory card. Fit right in and worked on the first try. The kids have been starting to transfer games over but the main driver was NBA2K21, which wanted to download a 37GB update, larger than the memory built into the switch. With the memory card in play there is now plenty of room.
| Manufacturer Warranty | 5 Year |
| Capacity | 64GB, 128GB, 256GB, 512GB |
| Dimensions | 15.0mm x 11.0mm x 1.0mm |
| Performance Read(max.) | 100MB/s |
| Performance Write(max.) | 80MB/s |
