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Two green DDR4 DIMM sticks, no heat spreaders, 288-pin

Computer Memory Solutions

Computer Memory Solutions 64GB (2x32GB) DDR4 2666 CL19 DIMM memory upgrade - C143

SKU CH-AFGG-65NFG

64GB dual-channel kit with two 32GB DDR4 2666 CL19 DIMMs for ASUS ROG Maximus XI and XII Hero boards

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL19
  • Memory timings19-19-19
  • Rated voltage1.2 V
  • 64 GB total capacity from two 32 GB modules
  • DDR4 2666 speed rated at PC4 21300 for fast data transfer
  • CL19 CAS latency with 19-19-19 timing for responsive operation
  • 2 V low voltage reduces power draw and heat
  • Validated for ASUS ROG MAXIMUS XI and XII HERO motherboards

64GB DDR4 2666 Kit for ASUS ROG Boards

This 64GB kit contains two 32GB DDR4 2666 CL19 DIMMs built for ASUS ROG MAXIMUS XI HERO and XII HERO motherboards. The modules run at 1.2V with 19-19-19 timing and use unbuffered non-ECC chips. It is a straightforward capacity upgrade for those specific platforms.

Suits dual-channel 64GB builds, not larger arrays

Builders filling two slots on a compatible ROG board for 64GB total will match the rated speed and latency. Systems needing 128GB across four slots or users requiring ECC error correction should choose a different specification.

Two 32GB unbuffered non-ECC DIMMs at CL19

Each stick is a 32GB 288-pin DDR4 module rated at 2666 MT/s with CL19 latency. The kit delivers 64GB in a matched pair designed for the listed ASUS motherboards without heat spreaders.

How it compares

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

Price $283.99
Cheaper than about 55% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $4.44 per GB
Cheaper than about 82% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM4096642666DIMM
Total capacity64 GB (2 × 32 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 systemsASUS/Asmobile Motherboard ROG MAXIMUS XI HERO (WI-FI), ROG MAXIMUS XI HERO, ROG MAXIMUS XII HERO (Wi-Fi)
In the box
Included items2 Memory RAM Sticks

Questions about this item

Does the kit include only the two 32 GB modules or are extra components supplied?

The package contains two 32 GB DDR4 DIMM modules and nothing else.

Should I choose this 64 GB CL19 kit or a lower-capacity alternative for my ROG MAXIMUS XI HERO?

The board supports up to 128 GB across four slots, so this 64 GB kit leaves two slots free for future expansion.

Will the rated 2666 MT/s speed run automatically once installed in a ROG MAXIMUS XII HERO (Wi-Fi)?

The modules operate at 2666 MT/s with CL19 timing at 1.2 V; the motherboard will apply these settings by default.

More in Model-Specific Memory Upgrades

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