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 64 GB kit of four 16 GB DDR4 3200 CL22 2Rx8 1.2 V UDIMM modules validated for ASRock B660M motherboards
This NEMIX RAM kit provides 64 GB of DDR4 memory in four 16 GB modules. It is built for desktop PCs using ASRock B660M motherboards such as the PG Riptide, Phantom Gaming 4 and Pro RS. The modules run at 3200 MHz with CL22 latency and 1.2 V operation.
Each 288-pin UDIMM drops into the motherboard slots without tools or cables. The unbuffered, non-ECC design means the system recognises the memory automatically in most cases. Builders should seat all four sticks firmly and check the motherboard manual for the recommended population order to avoid a no-post condition.
The kit operates at DDR4 3200 (PC4-25600) with CL22 timing, which is the rated speed for the compatible ASRock B660M models. Systems that require faster memory or lower latency will not reach those targets with this kit.
| Brand | NEMIX RAM |
|---|---|
| Series | ASRock Gaming Motherboard Compatible Series Memory |
| Model | ASRock DDR4 3200MHZ Non-ECC Unbuffered UDIMM |
| Part Number | MD25600-628K4 |
| Capacity | 64GB (4 x 16GB) |
| Speed | DDR4 3200 (PC4 25600) |
| ECC | No |
| 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 UDIMM |
| Rank | 2Rx8 |
| Features | DDR4 Non- ECC Unbuffered UDIMM Motherboard Compatible |
| Package Content | 64GB (4X16GB) DDR4 3200MHZ PC4-25600 2Rx8 1.2V CL22 288-PIN Non-ECC Unbuffered UDIMM KIT |
Open the BIOS or a tool such as CPU-Z and confirm the memory frequency reads 3200 MT/s with timings of 22-22-22 at 1.20 V.
The package contains the 64 GB kit — four 16 GB 288-pin DDR4 UDIMM modules — and nothing else; no extra cables, brackets or software are needed.
This 64 GB CL22 kit matches the supported DDR4 3200 specification for the listed ASRock B660M models; select a different capacity only if you need more or less total memory.
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