NEMIX RAM MD25600-818K4 32GB 4x8GB DDR4 3200 CL22 memory upgrade

32GB DDR4 kit for ASRock B660M boards

This NEMIX RAM kit delivers 32GB of DDR4 3200 memory in a matched set of four 8GB UDIMM modules. It is built for desktop owners upgrading an ASRock B660M PG Riptide, Phantom Gaming 4, Pro RS or ProRS motherboard who need more capacity for everyday workloads. The modules run at 1.20V with CL22 latency and are non-ECC unbuffered, matching the board's standard memory specification. Buyers seeking ECC or registered DIMMs should look elsewhere.

288-pin unbuffered UDIMM without heat spreaders

Each stick uses a 288-pin DDR4 UDIMM form factor populated with 1Rx8 chips sourced from major OEM suppliers such as Samsung, Micron or Hynix. The absence of heat spreaders keeps the profile low, which helps when CPU coolers overhang the first slot or when the board layout places slots close to large heatsinks. Standard 1.20V operation means no manual voltage adjustment is required for the rated 3200MT/s speed. Systems that demand ECC error correction or registered buffering are not supported by this kit.

Verify four free slots and DDR4 3200 support

Before ordering, confirm the motherboard has four available DDR4 slots and that the BIOS recognises 3200MT/s at CL22 with 1Rx8 density. The kit is validated for the listed ASRock B660M models; other chipsets or board revisions may require a BIOS update or may not reach the rated frequency. Mixed populations with existing modules of different rank, voltage or timing can prevent the system from posting at the advertised speed.