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
Adds 16 GB of DDR5 4800 ECC registered memory with CL40 timing and 1.10 V operation for compatible SuperMicro servers
This NEMIX RAM module provides 16 GB of DDR5 ECC registered memory for SuperMicro servers and workstations. It operates at 4800 MT/s with a CL40 latency and runs at 1.1 V. The single-rank 1Rx8 design uses major OEM chips from Samsung, Micron or Hynix.
ECC circuitry detects and corrects single-bit errors during continuous operation, protecting data integrity in long-running server tasks. Registered buffering reduces electrical load on the memory controller, helping stability when multiple modules populate a channel. The 1.1 V supply limits heat output under extended load.
Verify that your SuperMicro system accepts 288-pin DDR5 RDIMM modules and supports the PC5-38400 speed grade. Confirm the motherboard or server manual lists compatibility with registered ECC memory of this rank and voltage. Ensure an available DIMM slot exists for the single 16 GB module.
| Brand | NEMIX RAM |
|---|---|
| Series | SuperMicro Server/Workstation Compatible Series Memory |
| Model | SuperMicro DDR5 4800MHZ ECC RDIMM Registered Server Memory |
| Part Number | MR38400-618K1 |
| Capacity | 16GB |
| 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 | 1Rx8 |
| Features | DDR5 ECC Registered RDIMM Server Motherboard Compatible |
| Package Content | 16GB (1X16GB) DDR5 4800MHZ PC5-38400 1Rx8 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory |
The module operates at 1.10V, the standard voltage for DDR5 4800, so power draw stays within the JEDEC limit for that speed grade; actual watts depend on workload and the platform's memory controller.
You need a Supermicro server or workstation board with DDR5 RDIMM slots and a chipset that supports registered ECC memory; the 288-pin keying prevents insertion into non-DDR5 or unbuffered slots.
Yes, DDR5 registered ECC modules of varying capacities and ranks can populate the same channel provided the platform's memory controller supports mixed configurations; populate slots per the vendor's population rules.
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