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
32 GB DDR5 ECC registered memory kit with two 16 GB modules at 4800 MT/s CL40 for Supermicro SuperWorkstation SYS-551A-T
This registered DDR5 kit contains two 16 GB modules rated at 4800 MT/s with CL40 latency. It is built for the Supermicro SuperWorkstation SYS-551A-T and the Super X13SWA-TF motherboard where ECC RDIMM memory is required.
The single specification that decides fit is the registered ECC RDIMM format combined with a 1Rx8 rank structure. Only systems expecting registered error-correcting DDR5 at 1.1 V with this exact pin-out and rank configuration will accept the kit.
The two modules are packaged together as a tested 32 GB pair so the memory controller sees identical timing and rank behaviour on both channels. No additional software or accessories are included; the kit relies on the motherboard SPD data for automatic configuration.
| Brand | NEMIX RAM |
|---|---|
| Series | SuperMicro Server/Workstation Compatible Series Memory |
| Model | SuperMicro DDR5 4800MHZ ECC RDIMM Registered Server Memory |
| Part Number | MR38400-618K2 |
| Capacity | 32GB (2 x 16GB) |
| 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 | 1Rx8 |
| Features | DDR5 ECC Registered RDIMM Server Motherboard Compatible |
| Package Content | 32GB (2X16GB) DDR5 4800MHZ PC5-38400 1Rx8 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT |
The 4800 MHz DDR5 rating sets the maximum JEDEC-standard data rate the kit will run at in a Supermicro SYS-551A-T or X13SWA-TF system, delivering PC5-38400 bandwidth at 1.10 V with CL40 latency.
The 288-pin DDR5 RDIMM interface adds a register between the DRAM and the memory controller, allowing the Supermicro platform to support higher capacities and maintain signal integrity with ECC error correction across both 16 GB 1Rx8 modules.
The kit uses standard-height 288-pin DDR5 RDIMM modules without heat spreaders, so it fits any Supermicro SYS-551A-T or X13SWA-TF DIMM slot that accepts registered ECC memory and provides 1.10 V power.
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