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Four green DDR4 DIMM modules with gold contacts

Computer Memory Solutions

Computer Memory Solutions 4×16 GB DDR4 2666 MHz CL19 2Rx8 1.2 V 288-pin DIMM 64 GB kit

SKU CH-8ZMQ-KZ36W

A 64 GB kit of four 16 GB DDR4 DIMMs running at 2666 MHz with CL19 timing at 1.2 V

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latency19
  • Memory timings19-19-19
  • Rated voltage1.2 V
  • 64 GB total capacity from four 16 GB modules
  • 2666 MHz DDR4 speed rated at PC4 21300
  • CL19 latency with 19-19-19 timing
  • Low 1.2 V operating voltage for efficiency
  • 288-pin unbuffered non-ECC DIMM form factor

64 GB DDR4 2666 MHz kit for system builders

This kit provides 64 GB of total capacity using four 16 GB DDR4 modules rated at 2666 MHz. The DIMMs are non-ECC, unbuffered, and operate at 1.2 V with a CAS latency of 19. They are suited for desktops and workstations that accept standard 288-pin DDR4 memory and require a matched set for multi-channel operation.

Verify DDR4 288-pin support and OS before ordering

Confirm that your motherboard accepts 288-pin DDR4 DIMMs and can run memory at 2666 MHz. A 64-bit operating system is required to address more than 4 GB of memory. The modules are non-ECC and unbuffered, so they will not work in platforms that require registered or error-correcting memory. All installed memory will run at the speed of the slowest module or the processor limit.

Matched 2Rx8 modules with lifetime defect coverage

Each module uses a 2Rx8 organisation with major-brand chipsets and is manufactured by Computer Memory Solutions. The four-piece kit is built as a matched set to simplify multi-channel installation. Appearance may vary from product images. A limited lifetime warranty against manufacturing defects is provided by the manufacturer when purchased from them.

How it compares

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

Price $309.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
CAS latency 19
Lower than about 70% of the 483 comparable items (median 22).
Price per GB $19.37 per GB
Pricier than about 65% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Part numberCM2048642666DIMM
Total capacity16 GB
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latency19
Memory timings19-19-19
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Power
Rated voltage1.2 V

Questions about this item

Does the 64 GB kit ship as four 16 GB DIMMs or do I need to buy extra modules?

The kit contains four 16 GB DDR4 2666 MHz CL19 2Rx8 1.2 V 288-pin DIMMs for a total of 64 GB; no additional modules are required.

Should I choose the 2666 MHz CL19 2Rx8 version or a different speed and latency?

Select this 2666 MHz CL19 2Rx8 kit when your system specifies DDR4-2666 non-ECC unbuffered memory; all installed modules will run at the slowest speed present.

Will the advertised 2666 MHz speed be achieved automatically in my desktop?

The modules are rated at DDR4-2666 (PC4-21300) CL19 1.2 V; actual operating speed depends on the CPU and motherboard capabilities and may run lower if mixed with slower memory.

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