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
16GB DDR5-4800 ECC RDIMM CL40 1.1V 288-pin registered server memory module
This 16 GB registered DIMM runs at DDR5 4800 with CL40 latency and 1.1 V operation. It is built for Hynix-compatible server and workstation platforms that require ECC error correction. The single-rank 1Rx8 organisation uses 288-pin DDR5 packaging. Buyers needing non-ECC or unbuffered modules for consumer boards cannot use this part.
The registered buffer reduces electrical load on the memory controller during continuous operation. ECC corrects single-bit errors and detects multi-bit errors without halting the system. CL40 timing and 1.10 V voltage are maintained across extended workloads. Modules without ECC or registered buffering lack this protection for mission-critical data integrity.
The PC5-38400 standard caps transfer rate at 4800 MT/s per pin. Registered DIMMs add one clock cycle of command delay compared to unbuffered modules. Single-rank density limits total capacity per channel on some platforms. Systems requiring higher bandwidth or greater ranks per channel must select faster or dual-rank DDR5 parts.
| Brand | NEMIX RAM |
|---|---|
| Series | Hynix Server/Workstaion Compatible Series Memory |
| Model | Hynix 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 | Hynix |
| 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 1.1 V, the standard DDR5 voltage, and its registered design adds a small buffer load; actual sustained power depends on the platform's memory controller and airflow.
The board must support DDR5 registered ECC memory with a 288-pin RDIMM slot and a server-class chipset that enables the register and error-correction functions.
Mixing ranks or speeds on the same channel is not recommended; the memory controller will down-clock all modules to the slowest common timing and may disable ECC or registered operation.
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