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Green bare circuit board DDR4 memory module with black chips and gold contacts

Computer Memory Solutions

Computer Memory Solutions CM2048642666DIMM 16GB DDR4 2666 CL19 memory upgrade

SKU CH-GVRK-YD8VC

16GB DDR4 2666 CL19 DIMM validated for ASRock Z370 and H310 motherboards

  • Capacity16GB
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Timing19-19-19
  • Voltage1.2V
  • 16 GB DDR4 2666 MHz adds responsive capacity
  • CL19 19-19-19 timing delivers stable operation
  • 2 V unbuffered design runs cool and efficient
  • 288-pin DIMM fits listed ASRock motherboards directly
  • Single 16 GB module allows easy future expansion

16GB DDR4 2666 module for ASRock boards

This 16GB DDR4 2666 CL19 DIMM is built for the listed ASRock motherboards including the Fatal1ty Z370 Gaming-ITX/ac and H310CM series. It suits owners of those boards who want a single 16GB stick to reach the platform maximum of 32GB across two slots. The module runs at 1.2V and uses unbuffered non-ECC chips in a 2Rx8 layout.

Simple DIMM installation with paired-slot advice

Insert the 288-pin stick into an empty DDR4 slot until the retention clips click. The board has two sockets and the supplier notes that mixing modules forces all memory to run at the speed of the slowest part or the CPU limit. For best throughput, install a matching second stick later to run in matched pairs.

Check slot count and OS before ordering

Verify your board is one of the named models and that a free DDR4 slot exists; the platform supports two DIMMs up to 32GB total. A 64-bit operating system is required to address more than 4GB, so confirm the OS before adding this 16GB module.

Highlights

  • 16 GB DDR4 2666 MHz adds responsive capacity
  • CL19 19-19-19 timing delivers stable operation
  • 2 V unbuffered design runs cool and efficient
  • 288-pin DIMM fits listed ASRock motherboards directly
  • Single 16 GB module allows easy future expansion

Specifications

BrandComputer Memory Solutions
ModelCM2048642666DIMM
Capacity16GB
Type288-Pin DDR4 SDRAM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Timing19-19-19
Voltage1.2V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemASRock Motherboard Fatal1ty Z370 Gaming-ITX/ac, H310CM-DVS, H310CM-HDV, H310CM-HDV/M.2, H310CM-ITX/ac
Package Content1Memory Ram Stick

Questions about this item

How do I verify the CM2048642666DIMM is running at DDR4 2666 CL19 after installation?

Enter the BIOS or use a tool like CPU-Z and confirm the memory shows 2666 MHz speed, 19-19-19 timings and 1.2 V voltage.

What ships with the CM2048642666DIMM and is anything else required?

The box contains one 16 GB 288-pin DDR4 DIMM; no extra cables or brackets are needed, just a free motherboard slot.

My board has two slots and supports 32 GB max — should I buy one or two of these 16 GB modules?

For full 32 GB capacity and dual-channel performance, install two modules; a single 16 GB stick works but runs in single-channel mode.

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

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