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 2 TB DDR5 registered ECC kit of sixteen 128 GB modules running at 4800 MT/s with CL40 latency and 1.1 V operation for ThinkMate Supermicro SuperServer 681E-TR
This NEMIX RAM kit delivers 2TB of DDR5 4800 memory in sixteen 128GB registered DIMMs. It is built for THINKMATE Supermicro SuperServer 681E-TR systems that require ECC RDIMM modules. The modules operate at 1.1V with a CAS latency of CL40 and use a 4Rx4 organisation. They are designed for enterprise workloads that demand high capacity and error correction.
IT teams upgrading compatible THINKMATE servers will find the registered ECC design matches the platform requirements. The 288-pin DDR5 form factor fits the target motherboard slots. Builders using consumer motherboards or workstations that only accept unbuffered UDIMMs cannot use this kit. Systems limited to lower maximum module densities or different pin counts should look elsewhere.
The decisive specification is the 2TB total capacity provided by sixteen 128GB modules. This density determines whether the server can reach its memory ceiling and support the intended virtualisation or database workloads. Verify the motherboard supports 16 DIMM slots and 128GB per slot before purchasing.
| Brand | NEMIX RAM |
|---|---|
| Series | THINKMATE Server/Workstation Compatible Series Memory |
| Model | THINKMATE DDR5 4800MHZ ECC RDIMM Registered Server Memory |
| Part Number | MR38400-744K16 |
| Capacity | 2TB (16 x 128GB) |
| 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 | 4Rx4 |
| Features | DDR5 ECC Registered RDIMM Server Motherboard Compatible |
| Package Content | 2TB (16X128GB) DDR5 4800MHZ PC5-38400 4Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory |
Yes — the kit provides 16 modules of 128 GB each, built as 288-pin DDR5 RDIMMs that match the server's registered DIMM sockets.
Follow the motherboard manual's population sequence for 4Rx4 registered modules; a common mistake is filling slots sequentially instead of the prescribed interleaved pattern.
Replace any module that reports uncorrectable ECC errors or fails a full memory diagnostic; otherwise the registered DDR5 DIMMs require no scheduled maintenance.
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