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
A 64 GB DDR5 4800 registered ECC kit of four 16 GB modules at CL40 and 1.1 V for ThinkMate Supermicro SuperServer 111C-NR and 121C-TN2R/TN10R systems
This NEMIX RAM kit provides 64 GB of DDR5 4800 memory in a matched set of four 16 GB registered DIMMs. It is built for Thinkmate Supermicro SuperServer platforms that require ECC RDIMM modules. The kit targets IT professionals upgrading compatible Thinkmate 111C-NR, 121C-TN2R or 121C-TN10R servers.
The decisive specification is the registered ECC design combined with a single-rank 1Rx8 layout at CL40 latency. This combination determines whether the server's memory controller will initialise the modules correctly. Systems that expect unbuffered or dual-rank DIMMs will not accept this kit.
Installation follows the standard 288-pin DDR5 DIMM procedure: power down, open the chassis, align the keyed notch, and press until the latches engage. The most common issue is populating slots in the wrong order for the specific SuperServer model; always consult the system manual for the approved population sequence. No heat spreader is fitted, so airflow across the bare PCB is required.
| Brand | NEMIX RAM |
|---|---|
| Series | THINKMATE Server/Workstation Compatible Series Memory |
| Model | THINKMATE DDR5 4800MHZ ECC RDIMM Registered Server Memory |
| Part Number | MR38400-618K4 |
| Capacity | 64GB (4 x 16GB) |
| Speed | DDR5 4800 (PC5 38400) |
| ECC | Yes |
| Buffered/Registered | Registered |
| Chipset | Major OEM Samsung, Micron, Hynix |
| Voltage | 1.10V |
| Compatible System | THINKMATE |
| CAS Latency | CL40 |
| Heat Spreader | No |
| Type | 288-Pin DDR5 RDIMM |
| Rank | 1Rx8 |
| Features | DDR5 ECC Registered RDIMM Server Motherboard Compatible |
| Package Content | 64GB (4X16GB) DDR5 4800MHZ PC5-38400 1Rx8 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT |
The modules will run at up to 4800 MT/s on platforms that support DDR5 4800; the actual speed is set by the server's memory controller and may be lower depending on the CPU and DIMM population.
Registered DDR5 DIMMs add a clock cycle of buffering for signal integrity, allowing higher capacities per channel; the PC5-38400 rating shows the peak transfer rate the interface can deliver.
Yes — the kit uses standard 288-pin DDR5 RDIMM form factor, which matches the DIMM slots on the listed Thinkmate Supermicro SuperServer models.
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