Computer Memory Solutions CM1024642666DIMM 8GB DDR4 2666MHz CL19 1.2V 288-Pin DIMM

Targeted DDR4 Upgrade for ASRock Boards

This 8 GB DDR4 module is built for specific ASRock motherboards including the Fatal1ty Z370 Gaming-ITX/ac and several H310CM variants. It delivers 8 GB of non-ECC, unbuffered memory in a single 288-pin DIMM. The kit suits users expanding a compatible platform to 32 GB maximum capacity across two sockets. Builders using other chipsets or four-slot boards should verify support before purchase.

Steady 2666 MHz Operation

Rated at DDR4 2666 (PC4 21300) with CL19 19-19-19 timings at 1.2 V, the stick runs at its rated speed without voltage headroom for overclocking. Under sustained load the dual-rank 2Rx8 organisation maintains standard JEDEC throughput. All installed memory will operate at the slowest module or CPU limit, so mixing faster kits provides no gain. The absence of a heat spreader means airflow matters in tight ITX builds.

Straightforward Single-Stick Install

Installation is a standard DIMM insertion into one of two slots; the module is keyed for DDR4 only. Common issues arise when populating the second slot with a mismatched stick, forcing both to run at the lower speed or latency. A 64-bit operating system is required to address the full 8 GB. The manufacturer notes product appearance may vary from images and offers a limited lifetime warranty when purchased directly.