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Two green circuit boards with black memory chips, gold edge connectors, 288-pin DIMM form factor

Computer Memory Solutions

Computer Memory Solutions 32GB Kit 2×16GB DDR4 2666 CL19 2Rx8 1.2V 288-pin DIMM

SKU CH-PJW4-E2CBN

A 32 GB DDR4 kit of two 16 GB DIMMs running at 2666 MHz with CL19 latency and 1.2 V unbuffered operation

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latency19
  • Memory timings19-19-19
  • Rated voltage1.2 V
  • 32GB total capacity from two 16GB modules
  • DDR4 2666 speed rated at PC4 21300
  • CL19 latency with 19-19-19 timing
  • 2V operation reduces power draw
  • 2Rx8 dual-rank unbuffered 288-pin DIMM

Kit contents and target build

This 32 GB kit contains two 16 GB DDR4 modules rated at 2666 MHz with CL19 timings. It is aimed at desktop owners who need a matched pair of non-ECC DIMMs to expand system memory to 32 GB.

Build and connector implications

Each stick is an unbuffered 288-pin DIMM operating at 1.2 V with a 2Rx8 organisation. The standard pin-out fits regular desktop slots, and the low voltage keeps power draw modest for everyday use.

Deciding specification

The kit delivers 32 GB total capacity across two 16 GB modules at DDR4 2666 CL19. Buyers who need ECC error correction, registered buffering, or a different speed grade should look elsewhere.

How it compares

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

Price $158.99
Cheaper than about 61% of the 21,161 comparable items (median $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 $9.94 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 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

What does the DDR4-21300 rating mean for the 2666 MHz speed?

DDR4-21300 is the peak transfer rate in MB/s for the 2666 MHz clock. The kit runs at 2666 MHz with CL19 timings.

Will the 288-pin DIMMs fit in a standard desktop motherboard?

Yes, the 288-pin DIMM form factor fits standard DDR4 desktop slots. The kit contains two 16 GB modules.

Do I need to enable XMP in the BIOS to run at 2666 MHz?

The modules are rated at 2666 MHz CL19 at 1.2 V JEDEC standard speed. They should run at that speed without enabling XMP.

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