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 64 GB of DDR5 ECC registered memory at 4800 MHz for Samsung server systems
This 64 GB DDR5 4800 module is built as a 2Rx4 registered DIMM with on-die ECC for Samsung server and workstation platforms. It operates at 1.1 V and carries a CL40 latency rating. The single-stick design suits administrators who need to populate one slot at a time.
Registered buffering and ECC correction keep data integrity stable during continuous multi-threaded workloads such as virtualization, database serving or render farms. The 1.1 V operating point limits thermal output while the module runs at the full 4800 MT/s data rate. Stress testing under load is performed before shipment.
The CAS latency of CL40 at DDR5 4800 determines whether this module matches the memory controller timing table of the target Samsung system. Verify the platform qualified-vendor list for CL40 2Rx4 RDIMM support before purchase. Builders who need lower latency or a different rank configuration should look elsewhere.
| Brand | NEMIX RAM |
|---|---|
| Series | Samsung Server/Workstation Compatible Series Memory |
| Model | Samsung DDR5 4800MHZ ECC RDIMM Registered Server Memory |
| Part Number | MR38400-924K1 |
| Capacity | 64GB |
| Speed | DDR5 4800 (PC5 38400) |
| ECC | Yes |
| Buffered/Registered | Registered |
| Chipset | Major OEM Samsung, Micron, Hynix |
| Voltage | 1.10V |
| Compatible System | Samsung |
| CAS Latency | CL40 |
| Heat Spreader | No |
| Type | 288-Pin DDR5 RDIMM |
| Rank | 2Rx4 |
| Features | DDR5 ECC Registered RDIMM Server Motherboard Compatible |
| Package Content | 64GB (1X64GB) DDR5 4800MHZ PC5-38400 2Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory |
The module operates at 1.1V, the standard DDR5 voltage, so power draw scales with the 4800 MT/s data rate and 2Rx4 organisation rather than any higher-voltage profile.
A server or workstation board with DDR5 RDIMM slots, registered-DIMM support and ECC enabled in the firmware is needed; the 288-pin keying prevents insertion into incompatible sockets.
The memory controller will train all modules on the channel to the lowest common speed and latency, so the 4800 MT/s CL40 stick will down-clock to match any slower DDR5 RDIMMs present.
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