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
Dual-rank 64 GB DDR5 kit with ECC and registered buffering at 1.10 V CL52 for Supermicro servers
This NEMIX RAM kit provides 64 GB of DDR5 memory in a matched pair of 32 GB modules. The registered ECC design targets Supermicro server and workstation platforms that require error-correcting, buffered DIMMs for data integrity. It is not intended for consumer desktop boards that accept only unbuffered non-ECC memory.
Confirm that your motherboard explicitly lists DDR5 RDIMM compatibility and that the BIOS recognises registered ECC modules. Systems limited to UDIMM or non-ECC memory will not post with this kit. Check the vendor documentation for the exact slot population rules for 2Rx4 modules. Mixing with existing unbuffered DIMMs is not supported.
The modules run at the standard DDR5 voltage of 1.10 V with a CL52 latency profile at 6400 MT/s. No heat spreader is fitted, so airflow across the PCB relies on chassis cooling. Registered buffering adds minimal latency overhead while maintaining signal integrity under sustained server workloads. Power draw scales with capacity and rank count.
| Brand | NEMIX RAM |
|---|---|
| Series | SuperMicro Server/Workstation Compatible Series Memory |
| Model | Supermicro DDR5 6400MHZ ECC RDIMM Registered Server Memory |
| Part Number | MR51200-324K2 |
| Capacity | 64GB (2 x 32GB) |
| Speed | DDR5 6400 (PC5 51200) |
| 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 | 2Rx4 |
| Features | DDR5 ECC Registered RDIMM Server Motherboard Compatible |
| Package Content | 64GB (2X32GB) DDR5 6400MHZ PC5-51200 2Rx4 1.1V CL52 288-PIN ECC RDIMM Registered Server Memory KIT |
The package contains the 64 GB kit made up of two 32 GB DDR5 RDIMM modules and nothing else.
This 64 GB (2 x 32 GB) DDR5 6400 CL52 ECC RDIMM kit matches the board’s validated configuration.
It runs at 6400 MT/s with CAS latency 52 at 1.1 V, providing registered ECC bandwidth for stable throughput.
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