SK hynix HMA42GR7AFR4N-TF 16GB DDR4 2133MHz CL15 ECC Registered Dual Rank 1.2V 288-Pin Server RAM
- 16GB
- 288-Pin DDR4 SDRAM
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NEMIX RAM
A 256GB dual-module DDR5 kit running at 6400MHz with CL52 latency, ECC and registered buffering for Supermicro servers
This 256 GB DDR5 ECC RDIMM kit is built for the Supermicro X14SBM-TP4F platform. It delivers 256 GB (2 x 128 GB) of registered server memory with on-die ECC for data integrity in mission-critical workloads. The modules run at 6400 MHz with CL52 latency at 1.10 V. IT professionals choose this kit for validated compatibility and stability in enterprise environments.
DDR5 RDIMMs at 6400 MHz require a motherboard and CPU that officially support the PC5-51200 data rate and registered signalling. The 4Rx4 organisation increases electrical load on the memory controller, so maximum populated speeds may drop when all slots are filled. Systems limited to lower DDR5 speeds or unbuffered DIMMs cannot use this kit. Buyers who need higher frequencies or lower latencies must verify platform support before purchase.
This kit replaces smaller DDR5 RDIMM sets such as 64 GB or 128 GB configurations when workloads demand more memory bandwidth and capacity. The jump is worth it for virtualisation hosts, AI inference nodes or database servers that hit capacity limits on current modules. It is not for systems that only accept unbuffered UDIMMs or platforms capped below 6400 MHz.
| Brand | NEMIX RAM |
|---|---|
| Series | Supermicro Compatible Series Server Memory |
| Model | DDR5 ECC RDIMM Registered Server RAM |
| Part Number | MR51200-744K2 |
| Capacity | 256GB (2 x 128GB) |
| ECC | Yes |
| Buffered/Registered | Registered |
| Chipset | Major OEM Samsung, Micron, Hynix |
| Voltage | 1.10V |
| Compatible System | Supermicro |
| CAS Latency | CL52 |
| Heat Spreader | No |
| Type | 288-PIN DDR5 RDIMM |
| Rank | 4Rx4 |
| Features | DDR5 ECC RDIMM Motherboard Compatible |
| Package Content | 256GB (2 x 128GB) DDR5 6400MHz PC5-51200 4Rx4 1.1V 288-PIN ECC RDIMM KIT |
The kit provides 256 GB total as two 128 GB modules, which matches the maximum supported capacity for this Supermicro board.
The modules run at 6400 MHz with CL52 latency at 1.10 V, giving the bandwidth shown by the PC5-51200 designation for registered ECC workloads.
The 288-pin RDIMM form factor fits DDR5 RDIMM slots; the registered buffer and ECC function are required by the Supermicro platform and do not cap the 6400 MHz data rate.
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