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
16 GB DDR5 4800 ECC RDIMM CL40 1.1 V module for Cisco UCS C240 M7 servers
This 16 GB registered DDR5 module is validated for the Cisco UCS C240 M7 rack server. It delivers 4800 MT/s bandwidth with CL40 latency and on-die ECC for data integrity in enterprise workloads. The single-rank 1Rx8 organisation keeps electrical loading low on populated memory channels.
The 288-pin RDIMM form factor installs directly into the C240 M7 DIMM sockets and operates at the standard 1.1 V DDR5 voltage. Registered buffering reduces signal load on the memory controller, freeing electrical headroom for additional modules on the same channel. No heat spreader is fitted, so airflow clearance follows the server chassis design.
Under continuous load the module maintains rated 4800 MT/s speed while ECC corrects single-bit errors in real time. Registered signalling stabilises command timing across multiple ranks, preventing timing drift during long compute runs. The 1.1 V supply keeps power draw predictable for dense server configurations.
| Brand | NEMIX RAM |
|---|---|
| Series | Cisco Server Compatible Series Memory |
| Model | Cisco 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 | Cisco |
| 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 without a heat spreader; sustained loads rely on chassis airflow to keep temperatures within DDR5 limits.
The RDIMM itself is silent and draws 1.10V; any audible noise or extra heat comes from the server fans managing total system thermals.
The server needs an available DDR5 RDIMM slot and a BIOS that supports 16GB 1Rx8 ECC registered modules at 4800 MT/s.
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