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 512 GB DDR4-3200 registered ECC kit of four 128 GB modules built for THINKMATE Supermicro 740P-TR and 740P-TRT servers
This registered DDR4 memory kit provides 512GB total capacity across four 128GB modules. It is built for Thinkmate Supermicro SuperServer 740P-TR and 740P-TRT tower systems that require ECC RDIMM modules. The 4Rx4 organisation and CL22 latency suit enterprise workloads needing data integrity and high density. System administrators upgrading compatible Thinkmate platforms can install this kit to maximise supported memory.
Operating at 1.20V, the modules run at standard DDR4 voltage for registered server memory. The absence of heat spreaders keeps the form factor slim for dense DIMM populations in tower chassis. Registered buffering reduces electrical load on the memory controller, aiding stability when all 288-pin slots are populated. Typical server airflow across bare modules manages thermals under sustained load.
The kit ships as a matched set of four 128GB RDIMMs tested for compatibility with the listed Thinkmate Supermicro SuperServer models. Using a pre-validated kit avoids mixed-rank or timing issues that can arise when populating all channels individually. No additional software or firmware is included; installation follows the system owner’s manual. Buyers needing different capacities or non-ECC memory should look elsewhere.
| Brand | NEMIX RAM |
|---|---|
| Series | THINKMATE Server/Workstation Compatible Series Memory |
| Model | SuperMicro DDR4 3200MHZ ECC RDIMM Registered Server Memory |
| Part Number | MR25600-744K4 |
| Capacity | 512GB (4 x 128GB) |
| Speed | DDR4 3200 (PC4 25600) |
| ECC | Yes |
| Buffered/Registered | Registered |
| Chipset | Major OEM Samsung, Micron, Hynix |
| Voltage | 1.20V |
| Compatible System | THINKMATE |
| CAS Latency | CL22 |
| Heat Spreader | No |
| Type | 288-Pin DDR4 RDIMM |
| Rank | 4Rx4 |
| Features | DDR4 ECC Registered RDIMM Server Motherboard Compatible |
| Package Content | 512GB (4X128GB) DDR4 3200MHZ PC4-25600 4Rx4 1.2V CL22 288-PIN ECC RDIMM Registered Server Memory KIT |
Power down, open the chassis, align each 128GB module's notch with the slot key, press firmly until both retention clips click, then verify all four are recognised in BIOS before closing the case.
The modules have no moving parts or heat spreaders; no scheduled maintenance is required — only replace a stick if ECC logs report uncorrectable errors or the system fails memory diagnostics.
The CL22 latency at 3200 MT/s sets the throughput ceiling; sustained loads will hit bandwidth and latency limits of the DDR4-25600 spec before voltage or thermal throttling becomes a factor.
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