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Two black 288-pin DDR4 DIMM modules in a matched pair

Computer Memory Solutions

Computer Memory Solutions 32GB (2x16GB) DDR4 2666MHz CL19 DIMM for ASUS ROG STRIX B550-F Gaming memory upgrade

SKU CH-8WAK-MVSPS

32 GB dual-channel DDR4 kit with two 16 GB DIMMs at 2666 MHz CL19 for ASUS ROG STRIX B550 and B560 motherboards

  • Total capacity32 GB (2 × 16 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL19
  • Memory timings19-19-19
  • Rated voltage1.2 V
  • 32 GB kit expands system capacity to 128 GB max
  • 2666 MHz DDR4 speed rated at PC4 21300 bandwidth
  • CL19 latency with 19-19-19 timings for stable operation
  • 2 V unbuffered DIMMs reduce power draw
  • Validated for ROG STRIX B550-F, B550-XE and B560-A motherboards

32GB DDR4 Kit for ASUS ROG STRIX Boards

This 32GB kit contains two 16GB DDR4 DIMMs validated for ASUS ROG STRIX B550-F Gaming, B550-XE Gaming Wi-Fi and B560-A Gaming Wi-Fi motherboards. It targets builders upgrading those specific platforms to the 128GB maximum capacity across four slots. Buyers needing ECC, registered modules or speeds above 2666MHz should look elsewhere.

Standard Voltage and Latency at Stock Speed

The modules run at 1.2V with CL19 timings (19-19-19) at the rated 2666MHz (PC4-21300) frequency. As unbuffered non-ECC DIMMs they draw typical DDR4 power without active cooling requirements. Mixing with kits of different voltage, speed or timing is not recommended and may cause instability.

Dual-Channel Pair for Four-Slot Boards

Each 288-pin DIMM uses a 2Rx8 organisation, letting the pair operate in dual-channel mode on the supported four-slot boards. Installing matched pairs maximises performance while leaving two slots free for future expansion up to the 128GB limit. A 64-bit operating system is required to address more than 4GB of memory.

How it compares

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

Price $180.99
Cheaper than about 59% 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 $5.66 per GB
Cheaper than about 68% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Model nameCM2048642666DIMMX2
Total capacity32 GB (2 × 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
Power
Rated voltage1.2 V
Compatibility
Compatible systemsASUS Motherboard ROG STRIX B550-F GAMING, ROG STRIX B550-XE GAMING (WI-FI), ROG STRIX B560-A GAMING WIFI

Questions about this item

How do I install the 288-pin DDR4 DIMMs on the ROG STRIX B550-F Gaming, and which step causes the most issues?

Align the notch on each 16GB module with the slot key, press down firmly until both side clips click shut, then verify the motherboard detects 32GB at 2666MHz; the step most often missed is seating both ends evenly so the clips engage fully.

What maintenance or replacement will the 2x16GB kit need over its lifetime?

No scheduled maintenance is required; keep the gold contacts clean and ensure case airflow stays unobstructed. If a module fails, the limited lifetime warranty from Computer Memory Solutions covers exchange for a manufacturing defect.

What limit appears first when the 32GB kit runs sustained workloads at 2666MHz CL19?

The CAS 19 timing at 1.2V sets the latency floor, and the motherboard's four-slot topology caps total capacity at 128GB, so the first hard limit under sustained use is the rated 2666MHz speed and CL19 latency of these modules.

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