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 128 GB DDR5 4800 CL40 ECC registered kit built for Supermicro workstations and servers
This 128GB kit contains two 64GB DDR5 4800 registered DIMMs with ECC and CL40 latency. It is built for the SuperMicro SuperWorkstation SYS-751A-I and the Super X13DAI-T motherboard. IT professionals and system integrators who need validated, high-density memory for these specific platforms will find it ready to install.
DDR5 4800 sets the maximum data rate at 4800 MT/s with a base voltage of 1.10V. Registered ECC modules add a clock cycle for address parity and command buffering, so the memory controller must support registered operation. Mixing registered with unbuffered DIMMs or exceeding the platform's qualified speed will prevent boot or cause instability.
The kit delivers the full 128GB capacity only when both 2Rx4 modules occupy the correct slots for the target platform. A single 64GB module leaves half the capacity unused, and adding a third DIMM of a different rank or speed breaks the qualified configuration. Builders who need a different total capacity or rank layout must select a separate kit.
| Brand | NEMIX RAM |
|---|---|
| Series | SuperMicro Server/Workstation Compatible Series Memory |
| Model | SuperMicro DDR5 4800MHZ ECC RDIMM Registered Server Memory |
| Part Number | MR38400-924K2 |
| Capacity | 128GB (2 x 64GB) |
| 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 | 2Rx4 |
| Features | DDR5 ECC Registered RDIMM Server Motherboard Compatible |
| Package Content | 128GB (2X64GB) DDR5 4800MHZ PC5-38400 2Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT |
The kit provides 128 GB total across two 64 GB DDR5 4800 RDIMMs. Match the capacity to your workload and the motherboard's maximum supported memory.
The modules run at 4800 MT/s with CL40 latency at 1.10 V. Registered ECC buffering adds one cycle but improves signal integrity for sustained server workloads.
The 288-pin DDR5 RDIMM form factor fits the X13DAI-T slots. PC5-38400 defines the 4800 MT/s data rate; the registered buffer and ECC operate within that JEDEC specification.
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