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 192GB of DDR5 ECC registered memory in six 32GB modules at 4800MHz CL40 1.1V for ThinkMate servers
This 192GB kit contains six 32GB DDR5 4800 registered DIMMs built for ThinkMate RAX-XS4-21S4 rackmount servers. ECC and registered buffering protect data integrity in mission-critical workloads. IT professionals who need validated compatibility for this specific platform will find the modules tested under load. Buyers who want more storage or non-ECC desktop memory should look elsewhere.
Populating all six slots lets the memory controller run every channel at the rated 4800 MT/s without mixing capacities. The 2Rx8 organisation and 1.10V operation keep power draw predictable in dense rack configurations. No heat spreaders are included, so airflow must come from the server chassis. Systems that require fewer than six modules or unbuffered DIMMs cannot use this kit as supplied.
The PC5-38400 standard caps transfer rate at 4800 MT/s with CL40 latency, so bandwidth scales with channel count rather than higher frequency. Registered signalling adds one cycle of address-command delay, which is normal for server RDIMMs. Platforms that do not support DDR5 RDIMM topology or that require faster JEDEC speeds will not benefit from this kit.
| Brand | NEMIX RAM |
|---|---|
| Series | THINKMATE Server/Workstation Compatible Series Memory |
| Model | THINKMATE DDR5 4800MHZ ECC RDIMM Registered Server Memory |
| Part Number | MR38400-328K6 |
| Capacity | 192GB (6 x 32GB) |
| 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 | 2Rx8 |
| Features | DDR5 ECC Registered RDIMM Server Motherboard Compatible |
| Package Content | 192GB (6X32GB) DDR5 4800MHZ PC5-38400 2Rx8 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT |
No firmware updates are required; the registered DDR5 RDIMMs are validated for the ThinkMate RAX-XS4-21S4 and stay seated in the 288-pin slots for the life of the server.
The CL40 latency at 1.10 V is the governing limit; sustained throughput is capped by the DDR5 4800 specification rather than thermal throttling.
Each module runs at 1.1 V without a heat spreader, so total power stays low and airflow from the rackmount chassis keeps temperatures in normal range.
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