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Four green DDR4 DIMM sticks, no heat spreader, 288 pins

Computer Memory Solutions

Computer Memory Solutions CM2048642666DIMM 64GB (4x16GB) DDR4 2666MHz CL19 memory upgrade

SKU CH-SX5X-VSFZF

64 GB kit of four 16 GB DDR4 2666 MHz CL19 DIMMs validated for MSI Z370 Gaming motherboards

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL19
  • Memory timings19-19-19
  • Rated voltage1.2 V
  • 64 GB total capacity across four 16 GB modules
  • 2666 MHz DDR4 speed rated at PC4 21300
  • CL19 latency with 19-19-19 timing at 1.2 V
  • Validated for MSI Z370 Gaming M5, Pro Carbon, Pro Carbon AC, Godlike Gaming
  • Unbuffered non-ECC 288-pin DIMM using major-brand chipset

Targeted MSI Z370 upgrade

This 64 GB kit uses four 16 GB DDR4 modules rated at 2666 MHz with CL19 timing. It is built for the MSI Z370 GAMING M5, Z370 GAMING PRO CARBON, Z370 GAMING PRO CARBON AC and Z370 GODLIKE GAMING motherboards. The unbuffered, non-ECC DIMMs run at 1.2 V and fill all four slots.

Replacing smaller or mixed kits

A matched 4 x 16 GB set removes the speed penalty that occurs when modules of different capacities or speeds are combined. The jump is worthwhile when the board currently runs less than 64 GB or when mixed sticks force the system to operate at a lower frequency. Builders who need more than 64 GB cannot use this kit.

Straightforward DIMM installation

The 288-pin modules seat in the standard DDR4 slots without tools or heat spreaders to clear. Install them in matched pairs as the board manual directs to enable dual-channel operation. The main risk is mixing these sticks with existing memory of a different speed or latency, which will force all modules to run at the slowest common setting.

How it compares

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

Price $420.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 64 GB (4 × 16 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $6.58 per GB
Cheaper than about 60% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM2048642666DIMM
Total capacity64 GB (4 × 16 GB)
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL19
Memory timings19-19-19
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsMSI Motherboard Z370 GAMING M5, Z370 GAMING PRO CARBON, Z370 GAMING PRO CARBON AC, Z370 GODLIKE GAMING
In the box
Included items4 Memory RAM Sticks

Questions about this item

Will these 288-pin DDR4 DIMMs fit the four slots on my MSI Z370 motherboard?

Yes, the kit contains four 16 GB sticks that match the 288-pin DDR4 layout and the board’s four DIMM sockets.

What is the correct way to seat all four modules so the system runs at 2666 MHz CL19?

Install the sticks in matched pairs following the motherboard’s dual-channel guide, then verify XMP or manual 2666 MHz CL19 1.2 V settings in BIOS.

When should I expect to replace any of the 16 GB modules?

The manufacturer provides a limited lifetime warranty against defects; otherwise DDR4 modules typically last the useful life of the platform.

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