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
8GB DDR4 3200 ECC UDIMM module with CL22 latency and 1.2V operation for ASRock Rack server motherboards
This 8 GB DDR4 3200 module adds ECC unbuffered memory to compatible ASRock Rack motherboards. It runs at 1.2 V with CL22 latency and a 1Rx8 organisation. The 288-pin UDIMM fits standard DDR4 slots in supported server and workstation boards. System builders upgrading E3C256D4 series platforms can install it without registered DIMM requirements.
DDR4 3200 sets the maximum data rate at 3200 MT/s and the peak bandwidth at PC4-25600. Unbuffered ECC modules rely on the memory controller for command and address buffering, so total capacity per channel is limited by the board's trace layout and rank support. The CL22 timing and 1.2 V operation are fixed by the JEDEC standard for this speed grade; tighter latencies or higher voltages are not supported by this part. Builders who need registered DIMMs or higher frequencies must choose a different module.
This module replaces non-ECC DDR4 UDIMMs when data integrity is required, or adds a second 8 GB stick to populate an empty slot on a supported board. The upgrade is worthwhile when the workload demands error correction or when the system currently runs with a single rank per channel and the motherboard can utilise the additional rank. If the platform already uses registered memory or requires speeds above 3200 MT/s, this UDIMM will not meet those needs.
| Brand | NEMIX RAM |
|---|---|
| Series | ASRock Server Motherboard Compatible Series Memory |
| Model | ASRock DDR4 3200MHZ ECC Unbuffered UDIMM |
| Part Number | ME25600-818K1 |
| Capacity | 8GB |
| Speed | DDR4 3200 (PC4 25600) |
| ECC | Yes |
| Buffered/Registered | Unbuffered |
| Chipset | Major OEM Samsung, Micron, Hynix |
| Voltage | 1.20V |
| Compatible System | ASRock |
| CAS Latency | CL22 |
| Heat Spreader | No |
| Type | 288-Pin DDR4 ECC UDIMM |
| Rank | 1Rx8 |
| Features | DDR4 ECC Unbuffered UDIMM Motherboard Compatible |
| Package Content | 8GB (1X8GB) DDR4 3200MHZ PC4-25600 1Rx8 1.2V CL22 288-PIN ECC Unbuffered UDIMM |
Yes, the listed part ME25600-818K1 is an 8 GB single module; no other capacities appear in the compatibility list for the ASRock Rack motherboards named.
The module runs at 3200 MT/s with a CAS latency of 22 cycles at 1.2 V, giving ECC error correction and unbuffered operation for the supported ASRock Rack platforms.
The 288-pin DDR4 UDIMM form factor carries the PC4-25600 rating; the motherboard's memory controller determines the final operating speed, which is specified as 3200 MHz for the listed models.
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