SK hynix HMA42GR7AFR4N-TF 16GB DDR4 2133MHz CL15 ECC Registered Dual Rank 1.2V 288-Pin Server RAM
- 16GB
- 288-Pin DDR4 SDRAM
We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.
NEMIX RAM
384 GB DDR5 ECC registered server memory kit with twelve 32 GB modules at 4800 MT/s for Supermicro SuperWorkstation SYS-551A-T
This 384GB kit contains twelve 32GB DDR5 4800 registered ECC modules built for Supermicro SuperWorkstation SYS-551A-T and X13SWA-TF platforms. It targets IT teams running memory-intensive server workloads that require registered error-correcting memory at native 4800 MT/s. The 1Rx4 organisation and 1.10V operation match the platform's qualified memory list.
Replacing a lower-capacity registered DDR5 kit with this 12-module set fills all available slots on the qualified workstation, removing the need for mixed-capacity populations. The jump is worth it when virtualisation, in-memory databases or large-scale simulation push the current memory ceiling and the platform's memory controller supports the full 384GB at 4800 MT/s without downclocking.
Registered DDR5 at 4800 MT/s with CL40 latency introduces command-address latency overhead that benefits capacity scaling more than raw bandwidth per core. The 288-pin RDIMM form factor fits only DDR5 server and workstation boards with registered memory support; it will not work in consumer desktop or unbuffered laptop sockets. Mixing ranks or voltages outside the qualified vendor list risks training failures at this density.
| Brand | NEMIX RAM |
|---|---|
| Series | SuperMicro Server/Workstation Compatible Series Memory |
| Model | SuperMicro DDR5 4800MHZ ECC RDIMM Registered Server Memory |
| Part Number | MR38400-314K12 |
| Capacity | 384GB (12 x 32GB) |
| Speed | DDR5 4800 (PC5 38400) |
| ECC | Yes |
| Buffered/Registered | Registered |
| Chipset | Major OEM Samsung, Micron, Hynix |
| Voltage | 1.10V |
| Compatible System | Supermicro |
| CAS Latency | CL40 |
| Heat Spreader | No |
| Type | 288-Pin DDR5 RDIMM |
| Rank | 1Rx4 |
| Features | DDR5 ECC Registered RDIMM Server Motherboard Compatible |
| Package Content | 384GB (12X32GB) DDR5 4800MHZ PC5-38400 1Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT |
Yes, the 288-pin DDR5 RDIMM modules are the correct physical form factor for the Supermicro SYS-551A-T SuperWorkstation.
Populate all twelve slots following the motherboard manual channel sequence; the common error is skipping a slot in a channel instead of filling each channel sequentially.
Reseat modules if correctable ECC error counters increase over time; replace any module that logs uncorrectable errors or fails a full diagnostic pass.
Also in this aisle
Same shelf, same checkout — eight coins and a 30-minute rate lock.
What you pay in, and what you read prices in.
Sent from your wallet at checkout
Display only — the catalogue is priced in USD
No currency matches that.
Pick the language the site speaks to you in.
New here?
Already have one?
There is no automatic reset: this shop sends no mail, so there is no one-time link to ask for. Leave the address on the account and it gets picked up by hand.
Request noted
Nothing is on its way to your inbox — this shop sends no mail at all. Someone picks these up by hand.
Remembered it?