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Two green DDR4 memory sticks without heat spreaders

Computer Memory Solutions

Computer Memory Solutions 32GB (2x16GB) DDR4 2400 CL17 for ASRock X399M Taichi X470 Master SLI memory upgrade

SKU CH-85YJ-4W9PK

A 32 GB DDR4 kit with two 16 GB modules running at 2400 MHz CL17 for ASRock X399M Taichi and X470 boards

  • Total capacity32 GB (2 × 16 GB)
  • Rated speedDDR4 2400 (PC4 19200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL17
  • Memory timings17-17-17
  • Rated voltage1.2 V
  • 32GB dual-channel kit expands system memory for demanding workloads
  • DDR4 2400 CL17 timing delivers responsive data throughput at 1.2V
  • 288-pin unbuffered DIMMs install directly into ASRock X399 and X470 boards
  • Two matched 16GB modules enable optimal paired-channel performance
  • CMS compatibility guarantee covers X399M Taichi, X470 Master SLI and X470 Taichi series

System-specific DDR4 kit

This 32 GB kit contains two 16 GB DDR4-2400 modules validated for ASRock X399M Taichi, X470 Master SLI, X470 Master SLI/ac, X470 Taichi and X470 Taichi Ultimate motherboards. It targets builders who need guaranteed compatibility with those exact boards rather than generic JEDEC modules.

Dual-channel 288-pin upgrade

Each stick is a 288-pin unbuffered non-ECC DIMM rated at 1.2 V with CL17 17-17-17 timings. The kit occupies two of the board's four slots and runs at PC4-19200 speeds, leaving the remaining two sockets available for a future matched pair to reach the platform's 64 GB maximum.

Low-voltage thermal profile

Operating at the standard 1.2 V DDR4 voltage without a heat spreader, the modules rely on case airflow for cooling. Power draw stays within normal DDR4 limits for this frequency, and the absence of a spreader keeps the profile low for tight CPU cooler clearances.

How it compares

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

Price $169.99
Cheaper than about 60% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB (2 × 16 GB)
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $5.31 per GB
Cheaper than about 73% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM2048642400DIMM
Total capacity32 GB (2 × 16 GB)
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2400 (PC4 19200)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL17
Memory timings17-17-17
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsASRock Motherboard X399M Taichi, X470 Master SLI, X470 Master SLI/ac, X470 Taichi, X470 Taichi Ultimate
In the box
Included items2 Memory RAM Sticks

Questions about this item

Will the 1.2V DDR4 modules throttle under sustained full-load use?

The kit runs at the standard 1.2V DDR4 voltage with CL17 17-17-17 timings; DDR4 at this voltage is designed for continuous operation without thermal throttling on supported ASRock X399M Taichi and X470 boards.

How much heat and noise do the bare 288-pin sticks add to a system running all day?

These unbuffered non-ECC DIMMs have no heat spreader, so they rely on case airflow; they add negligible acoustic noise and only modest heat at 1.2V during 24/7 workloads.

Which motherboard slots and CPU memory controller are required for this 2×16GB kit to function?

The kit targets four-slot ASRock X399M Taichi, X470 Master SLI, X470 Master SLI/ac, X470 Taichi and X470 Taichi Ultimate boards; a 64-bit OS and a CPU with a DDR4 controller are needed to address the full 32GB.

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