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Four green DDR4 DIMM modules with black heat spreaders, 288-pin

Computer Memory Solutions

Computer Memory Solutions 4x32GB DDR4 2666MHz CL19 2Rx8 DIMM memory upgrade

SKU CH-7PX8-ZXTM5

128 GB DDR4 kit of four 32 GB DIMMs running at 2666 MHz CL19 1.2 V unbuffered non-ECC

  • Total capacity32 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latency19
  • Memory timings19-19-19
  • Rated voltage1.2 V
  • 128GB total capacity from four 32GB modules
  • DDR4 2666MHz speed for responsive system performance
  • CL19 19-19-19 timing with 1.2V efficient operation
  • 288-pin unbuffered non-ECC DIMM for desktop compatibility
  • 2Rx8 dual-rank organisation using major-brand chipsets

System-specific 128 GB DDR4 kit

This four-module kit delivers 128 GB of DDR4 memory using four 32 GB DIMMs. Each module runs at 2666 MHz with a CAS latency of 19 and operates at 1.2 V. The unbuffered, non-ECC design targets desktop and workstation platforms that accept 288-pin DIMMs.

Builders expanding to 128 GB

The kit suits users whose motherboards support four 32 GB unbuffered DIMMs at 2666 MHz and who need the full 128 GB capacity for memory-intensive workloads. Systems limited to lower per-slot densities, platforms that require ECC or registered modules, or builds that cannot address more than 64 GB should look at alternative configurations.

Four-module 128 GB capacity

The single specification that decides fit is the 128 GB total capacity provided by four 32 GB 2Rx8 DIMMs. The motherboard must support this density per slot and the 288-pin DDR4 interface for the kit to function.

How it compares

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

Price $633.99
Pricier than about 55% of the 21,161 comparable items (median $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 $19.81 per GB
Pricier than about 65% of the 20,941 comparable items (median $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

How can I confirm the kit is running at 2666 MHz with CL19 timings after installation?

Enter the BIOS or use a tool such as CPU-Z; the memory tab should show 2666 MHz and 19-19-19 timings at 1.2 V.

What exactly ships in the box and is anything else required?

The box contains four 32 GB DDR4 288-pin DIMM modules for a total of 128 GB; no extra parts are needed for installation.

Why choose the 4 × 32 GB kit instead of a smaller capacity?

The 4 × 32 GB kit provides 128 GB total, enabling full use of a 64-bit OS and matched-pair performance across four slots.

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