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 128GB DDR5 4800 ECC registered DIMM built for Supermicro SuperWorkstation SYS-751A-I systems
This single-module upgrade delivers 128GB of registered DDR5 memory at 4800MHz with CL40 latency. It operates at 1.1V and uses a 4Rx4 organization with ECC error correction. The 288-pin RDIMM is validated for the Supermicro SuperWorkstation SYS-751A-I and X13DAI-T platforms.
IT professionals expanding Supermicro workstation capacity for virtualization or database workloads will find this module compatible. Builders using consumer motherboards, laptops, or systems requiring unbuffered UDIMM memory cannot use this registered ECC RDIMM.
The module is a 288-pin DDR5 RDIMM with registered buffering and ECC. Only systems designed for registered DDR5 RDIMMs at 4800MHz can accept it; unbuffered or non-ECC platforms will not support this part.
| Brand | NEMIX RAM |
|---|---|
| Series | SuperMicro Server/Workstation Compatible Series Memory |
| Model | SuperMicro DDR5 4800MHZ ECC RDIMM Registered Server Memory |
| Part Number | MR38400-744K1 |
| Capacity | 128GB |
| Speed | DDR5 4800 (PC5 38400) |
| ECC | Yes |
| Buffered/Registered | Registered |
| Chipset | Major OEM Samsung, Micron, Hynix |
| Voltage | 1.10V |
| Compatible System | Supermicro |
| CAS Latency | CL40 |
| Heat Spreader | No |
| Type | 288-Pin DDR5 RDIMM |
| Rank | 4Rx4 |
| Features | DDR5 ECC Registered RDIMM Server Motherboard Compatible |
| Package Content | 128GB (1X128GB) DDR5 4800MHZ PC5-38400 4Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory |
The module operates at the standard DDR5 voltage of 1.10 V and has no heat spreader, so thermal output matches typical registered DIMM expectations for this platform.
The board needs DDR5 RDIMM slots that support 4800 MT/s, ECC, registered operation and 4Rx4 organisation; the module simply plugs into those slots.
Yes, provided the other modules are also DDR5 ECC RDIMMs rated for 4800 MT/s; the system will operate at the lowest common speed and latency.
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