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
128 GB DDR5 ECC registered server memory running at 4800 MT/s with CL40 latency and 1.1 V operation for Dell PowerEdge XR7620
This 128 GB registered DDR5 module runs at 4800 MT/s with CL40 latency and 1.10 V operation. It uses a 4Rx4 organisation and 288-pin form factor designed for the Dell PowerEdge XR7620 rack server. ECC and registered buffering support data integrity in enterprise workloads.
The module operates at the standard DDR5 voltage of 1.10 V without a heat spreader. Power consumption scales with the 4800 MT/s data rate and 4Rx4 density during typical server operation. Acoustic output is determined by the server chassis fans rather than the memory itself.
Major OEM Samsung Micron Hynix chips are stress tested under load to maintain stability during continuous operation. Registered buffering reduces electrical load on the memory controller during extended sessions. ECC corrects single-bit errors that can accumulate over long-running compute tasks.
This part is validated for the Dell PowerEdge XR7620 and is not intended for consumer desktop boards or non-Dell server platforms. Buyers needing unbuffered UDIMM memory or higher-speed DDR5 bins should select a different module.
| Brand | NEMIX RAM |
|---|---|
| Series | Dell Server/Workstation Compatible Series Memory |
| Model | Dell DDR5 4800MHZ ECC RDIMM Registered Server Memory |
| Part Number | MR38400-744K1 |
| Capacity | 128GB |
| Speed | DDR5 4800 (PC5 38400) |
| ECC | Yes |
| Buffered/Registered | Registered |
| Chipset | Major OEM Samsung, Micron, Hynix |
| Voltage | 1.10V |
| Compatible System | Dell |
| CAS Latency | CL40 |
| Heat Spreader | No |
| Type | 288-Pin DDR5 RDIMM |
| Rank | 4Rx4 |
| Features | DDR5 ECC Registered RDIMM Server Motherboard Compatible |
| Package Content | 128GB (1X128GB) DDR5 4800MHZ PC5-38400 4Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory |
Align the notch on the 288-pin module with the slot key, press firmly until both side clips click, then verify the server BIOS recognises the full 128GB capacity.
No scheduled maintenance is required; if a correctable error count rises or the module fails, replace it with another DDR5 4800 4Rx4 1.1V RDIMM of matching capacity.
The quad-rank 4Rx4 organisation increases electrical loading, so the memory controller typically hits its maximum supported rank-per-channel limit before bandwidth or thermal limits become an issue.
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