Crucial Memory DDR4 16GB 2133MHz CT16G4RFD4213
More speed. More bandwidth. More efficient. Next generation DDR4 memory is here. Overcome one of your greatest server limitations: memory. From networking, cloud computing, and virtualization to HPC, Big Data and more, memory-dependent server applications require increasingly higher densities of memory and higher levels of performance than are attainable on current DDR3 technology. Enter Crucial DDR4 server memory. 2x the Speed Process data faster. Enable up to twice the responsiveness, and increase memory bandwidth by up to 50% to 25.6 GB/s. With Crucial DDR4 memory, introductory data rates start at 2133 MT/s and get even faster as the technology matures, compared to introductory DDR3 rates of 1066 MT/s. Crucial DDR4 memory also delivers faster burst access speeds for improved sequential data throughput by utilizing 4-bank groups that are unique to DDR4 technology. 2x the Capacity Maximize system performance by doubling memory capacity. As DDR4 memory technology matures, it will allow you to double your server’s memory capacity and get more out of every module – and your entire network. Built using smaller die that allow more gigabits per component, Crucial DDR4 memory is designed to utilize higher density components, allowing us to deliver DDR4 modules that are up to twice as dense. Up to 40% More Energy Efficient Reduce power and cooling expenses. Crucial DDR4 memory uses 20% less voltage than DDR3 technology, and operates at just 1.2V compared to 1.5V for standard DDR3 server memory. Combined with the additional power-saving features inherent in DDR4 memory architecture, Crucial DDR4 memory is able to deliver up to 40% power savings compared to standard DDR3 technology. Also, since less heat is generated per module, it’s easier to keep systems cool.
More speed. More bandwidth. More efficient. Next generation DDR4 memory is here. Overcome one of your greatest server limitations: memory. From networking, cloud computing, and virtualization to HPC, Big Data and more, memory-dependent server applications require increasingly higher densities of memory and higher levels of performance than are attainable on current DDR3 technology. Enter Crucial DDR4 server memory. 2x the Speed Process data faster. Enable up to twice the responsiveness, and increase memory bandwidth by up to 50% to 25.6 GB/s. With Crucial DDR4 memory, introductory data rates start at 2133 MT/s and get even faster as the technology matures, compared to introductory DDR3 rates of 1066 MT/s. Crucial DDR4 memory also delivers faster burst access speeds for improved sequential data throughput by utilizing 4-bank groups that are unique to DDR4 technology. 2x the Capacity Maximize system performance by doubling memory capacity. As DDR4 memory technology matures, it will allow you to double your server’s memory capacity and get more out of every module – and your entire network. Built using smaller die that allow more gigabits per component, Crucial DDR4 memory is designed to utilize higher density components, allowing us to deliver DDR4 modules that are up to twice as dense. Up to 40% More Energy Efficient Reduce power and cooling expenses. Crucial DDR4 memory uses 20% less voltage than DDR3 technology, and operates at just 1.2V compared to 1.5V for standard DDR3 server memory. Combined with the additional power-saving features inherent in DDR4 memory architecture, Crucial DDR4 memory is able to deliver up to 40% power savings compared to standard DDR3 technology. Also, since less heat is generated per module, it’s easier to keep systems cool.
More speed. More bandwidth. More efficient. Next generation DDR4 memory is here. Overcome one of your greatest server limitations: memory. From networking, cloud computing, and virtualization to HPC, Big Data and more, memory-dependent server applications require increasingly higher densities of memory and higher levels of performance than are attainable on current DDR3 technology. Enter Crucial DDR4 server memory. 2x the Speed Process data faster. Enable up to twice the responsiveness, and increase memory bandwidth by up to 50% to 25.6 GB/s. With Crucial DDR4 memory, introductory data rates start at 2133 MT/s and get even faster as the technology matures, compared to introductory DDR3 rates of 1066 MT/s. Crucial DDR4 memory also delivers faster burst access speeds for improved sequential data throughput by utilizing 4-bank groups that are unique to DDR4 technology. 2x the Capacity Maximize system performance by doubling memory capacity. As DDR4 memory technology matures, it will allow you to double your server’s memory capacity and get more out of every module – and your entire network. Built using smaller die that allow more gigabits per component, Crucial DDR4 memory is designed to utilize higher density components, allowing us to deliver DDR4 modules that are up to twice as dense. Up to 40% More Energy Efficient Reduce power and cooling expenses. Crucial DDR4 memory uses 20% less voltage than DDR3 technology, and operates at just 1.2V compared to 1.5V for standard DDR3 server memory. Combined with the additional power-saving features inherent in DDR4 memory architecture, Crucial DDR4 memory is able to deliver up to 40% power savings compared to standard DDR3 technology. Also, since less heat is generated per module, it’s easier to keep systems cool.
More speed. More bandwidth. More efficient. Next generation DDR4 memory is here. Overcome one of your greatest server limitations: memory. From networking, cloud computing, and virtualization to HPC, Big Data and more, memory-dependent server applications require increasingly higher densities of memory and higher levels of performance than are attainable on current DDR3 technology. Enter Crucial DDR4 server memory. 2x the Speed Process data faster. Enable up to twice the responsiveness, and increase memory bandwidth by up to 50% to 25.6 GB/s. With Crucial DDR4 memory, introductory data rates start at 2133 MT/s and get even faster as the technology matures, compared to introductory DDR3 rates of 1066 MT/s. Crucial DDR4 memory also delivers faster burst access speeds for improved sequential data throughput by utilizing 4-bank groups that are unique to DDR4 technology. 2x the Capacity Maximize system performance by doubling memory capacity. As DDR4 memory technology matures, it will allow you to double your server’s memory capacity and get more out of every module – and your entire network. Built using smaller die that allow more gigabits per component, Crucial DDR4 memory is designed to utilize higher density components, allowing us to deliver DDR4 modules that are up to twice as dense. Up to 40% More Energy Efficient Reduce power and cooling expenses. Crucial DDR4 memory uses 20% less voltage than DDR3 technology, and operates at just 1.2V compared to 1.5V for standard DDR3 server memory. Combined with the additional power-saving features inherent in DDR4 memory architecture, Crucial DDR4 memory is able to deliver up to 40% power savings compared to standard DDR3 technology. Also, since less heat is generated per module, it’s easier to keep systems cool.
in 9 offers
The lowest price for Crucial Memory DDR4 16GB 2133MHz CT16G4RFD4213 right now is $106.70 at eBay.com.au, compared across 5 retailers.
The all-time low was $80.00 on 30 Aug 2025 — today's price is 33% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 6 June 2026.
Last updated at 06/06/2026 23:39:11
Crucial CT16G4RFD4213 16GB Single DDR4 2133 MT/s (PC4-2133) CL15 DR x4 ECC Registered DIMM 288-Pin Server Memory
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Crucial Technology RAM Memory 1 x 32GB DDR4 SDRAM 32 DDR4 2133 SDRAM CT32G4RFD4213
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!
Crucial 16gb (1x 16gb) Ddr4-2133 Pc4-17000 1.2v Dr X4 Ecc Registered
Delivery $40
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!
16GB DDR4 2400 MHz RDIMM Module Lenovo Compatible
Delivery between Tue – Thu $12.90
32GB DDR4 2133 MHz RDIMM Module Server Compatible
Delivery between Tue – Thu $12.90
32GB DDR4 2133 MHz RDIMM Module Lenovo Compatible
Delivery between Tue – Thu $12.90
32GB DDR4 2133 MHz RDIMM Module Dell Compatible
Delivery between Tue – Thu $12.90
Crucial 16GB (1x16GB) DDR3 RDIMM 1600MHz ECC Registered 1.35V Single Stick Server Desktop PC Memory RAM
Delivery $18
Crucial 32GB PC4-17000 (DDR4-2133MHz) Server Memory
Delivery between 10–16 June $25
originally posted on neweggbusiness.com
Found many Internet warnings that different brands of new memory and old memory may not play nice together, even if CAS latency and ECC/nonECC are the same. Matched old memory using HP Z240 sales literature and CPU/X. In the worst case, could have 16G Crucial memory alone; or, best case, 24G Crucial+HP. Everything played nicely together, and computer is running with 24G.
originally posted on adorama.com
No issues to speak of. This 16GB kit worked immediately in a AsRock Rack C236M motherboard with Intel Xeon 1280E3v5 CPU. I put this kit through four passes of Passmark MemTest (latest version) and no errors were found. A further 4 hour test with Prime95 revealed no issues. This RAM is being used in a server, so therefore stock clocks and voltages are utilized.
originally posted on neweggbusiness.com
8GB is enough to do basically anything normal on your computer - from browsing, report writing and even AAA gaming (assuming your graphics card and CPU are up to it). Not a bad choice. If you want to get 8GB sticks I recommend this one. It's even cheaper than the krappie fries brand. But i am only using this temporarily while i get enough money to buy 2X16GB sticks to max out my RAM on my MOBO.
| Capacity | 16GB (1x 16GB) |
| Voltage | 1.2V |
| Technology | DDR4 |
| Error Correction | ECC |
| Signal Processing | Registered |
Crucial CT16G4RFD4213 16GB Single DDR4 2133 MT/s (PC4-2133) CL15 DR x4 ECC Registered DIMM 288-Pin Server Memory
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!
Crucial Technology RAM Memory 1 x 32GB DDR4 SDRAM 32 DDR4 2133 SDRAM CT32G4RFD4213
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!
Crucial 16gb (1x 16gb) Ddr4-2133 Pc4-17000 1.2v Dr X4 Ecc Registered
Delivery $40
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!
16GB DDR4 2400 MHz RDIMM Module Lenovo Compatible
Delivery between Tue – Thu $12.90
32GB DDR4 2133 MHz RDIMM Module Server Compatible
Delivery between Tue – Thu $12.90
Found many Internet warnings that different brands of new memory and old memory may not play nice together, even if CAS latency and ECC/nonECC are the same. Matched old memory using HP Z240 sales literature and CPU/X. In the worst case, could have 16G Crucial memory alone; or, best case, 24G Crucial+HP. Everything played nicely together, and computer is running with 24G.
No issues to speak of. This 16GB kit worked immediately in a AsRock Rack C236M motherboard with Intel Xeon 1280E3v5 CPU. I put this kit through four passes of Passmark MemTest (latest version) and no errors were found. A further 4 hour test with Prime95 revealed no issues. This RAM is being used in a server, so therefore stock clocks and voltages are utilized.
8GB is enough to do basically anything normal on your computer - from browsing, report writing and even AAA gaming (assuming your graphics card and CPU are up to it). Not a bad choice. If you want to get 8GB sticks I recommend this one. It's even cheaper than the krappie fries brand. But i am only using this temporarily while i get enough money to buy 2X16GB sticks to max out my RAM on my MOBO.
I bought Crucial again because of my long experience with their excellent quality and compatibility. Cheaper RAM isn't a bargain if it causes instability or performance problems. I've never had to put extra troubleshooting time into a Crucial RAM upgrade -- just install it and go. The RAM boost gave a nice performance improvement on a system whose user insists on opening too many Exchange mailboxes all at once in Outlook.
People please stop wasting your money on memory with heat spreaders that have not been needed since ddr2. Buying those "fancy" ones encourages manufacturers to get more ridiculous with the designs. Get the slowest common speed available unless you are going for benchmarks. In this case 2133 is fine for a high end pro-sumer workstation. The extra $ for higher speeds yields almost no real world results. This kit is perfect.
This RAM is boring green like it should be. No heat spreaders to make it look cool. What you get is rock solid, reliable RAM that meets Intel's standards for the latest Skylake processor. As always, Crucial RAM is compatible and it works the first time every time. The RAM does not look cool or have glowing LED bits to it. If you have a window on the side of your case perhaps you care about how your RAM looks. If you want compatible, reliable RAM that performs as advertised then this is your product.
Friendly reminder: Don't let poor reviews discourage you. The vast majority of people don't bother to write a review because their item arrived safely and works properly. The only people who write negative reviews are almost always the few who received a defective item and wish to tell others about it. That's not a bad thing, just something you should be aware of.
The latency is one clock lower than most stuff on the market so its a little more responsive. This ram doesn't have those stupid non-functional,cheap, plastic and/or aluminum that is double side taped heat spreaders to the memory sticks. The big speeds advantages from DDR4 seem to come from memory that can be overclocked. I don't mess around with overclocking ram so I got this ram for my needs. Its a little bit more responsive right out of the box than and cheaper than the fancy ram than can be overclock. Don't expect this to be a huge improvement over DDR3.. some of the test I have seen put it at about 5% faster than ddr3 @ 1600mhz. With this ram turned down to 1600mhz its actually slower than DDR3. DDR4 doesn't seem to be much faster in response time than DDR3 ... MoreThe latency is one clock lower than most stuff on the market so its a little more responsive. This ram doesn't have those stupid non-functional,cheap, plastic and/or aluminum that is double side taped heat spreaders to the memory sticks. The big speeds advantages from DDR4 seem to come from memory that can be overclocked. I don't mess around with overclocking ram so I got this ram for my needs. Its a little bit more responsive right out of the box than and cheaper than the fancy ram than can be overclock. Don't expect this to be a huge improvement over DDR3.. some of the test I have seen put it at about 5% faster than ddr3 @ 1600mhz. With this ram turned down to 1600mhz its actually slower than DDR3. DDR4 doesn't seem to be much faster in response time than DDR3 since DDR3 has lower latency timings. If you are into overclocking ram then spend the extra money on the MOBO and ram. If you just want to stick something into a build that will work at the highest stock speeds, then get this ram it will save you some cash on your build.
This memory does exactly what its supposed to do: be memory! Auto'd right up to 2133 on an ASRock X99 WS without having to configure a thing. If you're gonna overclock your memory it wouldn't hurt to have heat spreaders of course, but this basic 2133 memory wouldn't even be on your radar anyway. My con is frankly silly, but hey, had to come up w/something. When pressing the RAM in it digs in to your fingers a bit. With heatsink'd memory its wider and doesn't do this. Oh well...
I'm giving this RAM 5 stars, because it passes successfully any stress test and I haven't found one faulty batch yet.BE AWARE, I have found a very specific issue with the following motherboard:ASUS H110i-PLUSIf you leave the default configurations as detected by the BIOS by reading the RAM information, several addresses of the RAM will be shown as faulty because somehow all of them are "misaligned" by a few blocks.To overcome this issue, override the latency (tCAS) from the default of 15 to 16, you may also try the following reported compatible latencies for this RAM: 9 10 11 12 13 14 15 16 17 18 19.
| Capacity | 16GB (1x 16GB) |
| Voltage | 1.2V |
| Technology | DDR4 |
| Error Correction | ECC |
| Signal Processing | Registered |
