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Two green DDR4 DIMM modules with black chips, 288-pin, 2x32GB kit

Computer Memory Solutions

Computer Memory Solutions 2x32GB DDR4 2666MHz CL19 2Rx8 DIMM memory upgrade

SKU CH-S1WG-SJW2M

Two 32 GB DDR4 DIMMs at 2666 MHz CL19 add 64 GB of unbuffered non-ECC memory to compatible desktops

  • Total capacity32 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latency19
  • Memory timings19-19-19
  • Rated voltage1.2 V
  • 64 GB total capacity from two matched 32 GB modules
  • DDR4 2666 MHz speed rated at PC4 21300 bandwidth
  • Low 1.2 V operation keeps power draw minimal
  • CL19 latency with 19-19-19 timings for responsive access
  • 288-pin unbuffered non-ECC DIMM using 2Rx8 major-brand chips

64GB DDR4-2666 Kit for Desktop Upgrades

This 2x32GB kit provides 64GB of total capacity using two 288-pin DIMM modules. Each module operates at 2666MHz with a CAS latency of 19 and a voltage of 1.2V. The memory is unbuffered, non-ECC and organised as 2Rx8 for broad desktop compatibility.

Suits standard desktop DIMM slots.

Builders adding memory to a desktop with four 288-pin slots will find this kit matches the DDR4 form factor and speed. Systems that require ECC, registered modules or SO-DIMM modules cannot use these DIMMs. Buyers needing ECC error correction or registered buffering should look at a different product type.

Dual-rank 2Rx8 organisation on each 32GB module

Each 32GB module uses a 2Rx8 configuration, which determines how the memory controller addresses the chips. If your platform requires single-rank modules or a different rank structure, this kit will not be compatible. Verify the motherboard documentation for supported rank configurations before purchase.

How it compares

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

Price $304.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 32 GB
Typical for this category: the median of 20,941 items is 32 GB.
CAS latency 19
Lower than about 70% of the 483 comparable items (median 22).
Price per GB $9.53 per GB
Typical for this category: the median of 20,941 items is $8.19 per GB.

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

Specifications

Product
Part numberCM4096642666DIMM
Total capacity32 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 this DDR4-2666 kit run at the full 2666 MHz on my motherboard, or is it capped by the CPU's memory controller?

The modules are rated for DDR4-2666 (PC4-21300), but the system will run all memory at the slowest speed of the installed modules or the CPU's maximum supported frequency.

Will these 288-pin DIMMs physically fit in my desktop's memory slots?

Yes, they use the standard 288-pin DDR4 DIMM form factor for desktop systems; ensure your motherboard has DDR4 slots and enough clearance around the socket.

How do I install the two 32 GB sticks correctly for dual-channel operation?

Insert both modules into the matched pair slots — typically the same-coloured sockets — so the memory controller activates dual-channel mode; a common mistake is populating adjacent slots instead of the paired ones.

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