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Green circuit board with black memory chips, no heat spreader, 288-pin DDR4 DIMM

Computer Memory Solutions

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

SKU CH-1T6V-VJFH7

8GB DDR4 2666MHz CL19 unbuffered DIMM validated for ASRock Z370 and H310 motherboards

  • Total capacity8 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL19
  • Memory timings19-19-19
  • Rated voltage1.2 V
  • 8GB capacity adds responsive multitasking headroom
  • 2666MHz DDR4 speed matches board specifications
  • CL19 timing delivers stable data access
  • 2V operation keeps power draw low
  • Validated for ASRock Z370 and H310 motherboards

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.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $38.99
Cheaper than about 81% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $4.87 per GB
Cheaper than about 78% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM1024642666DIMM
Total capacity8 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL19
Memory timings19-19-19
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsASRock Motherboard Fatal1ty Z370 Gaming-ITX/ac, H310CM-DVS, H310CM-HDV, H310CM-HDV/M.2, H310CM-ITX/ac
In the box
Included items1Memory Ram Stick

Questions about this item

Does the 1.2V CL19 module add noticeable heat or fan noise during all-day workloads?

The stick runs at standard 1.2V without a heat spreader, so thermal output is minimal and it will not increase fan noise in normal use.

What motherboard slot and CPU capability do I need for this 288-pin DDR4 DIMM to work?

You need a board with DDR4 288-pin DIMM slots — such as the listed ASRock Z370 or H310 models — and a CPU that supports DDR4-2666.

If I install this 2666MHz CL19 stick alongside slower DDR4 modules, what speed will the system run at?

All memory will operate at the speed of the slowest installed module or the CPU’s maximum supported rate, whichever is lower.

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