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Four green DDR4 DIMM sticks, no heat spreaders

Computer Memory Solutions

Computer Memory Solutions CM2048642666DIMM 64GB (4×16GB) DDR4 2666MHz CL19 memory upgrade

SKU CH-ZZTF-4CZTY

A 64 GB DDR4 kit of four 16 GB unbuffered DIMMs running at 2666 MHz CL19 for select ASUS/Asmobile 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
  • DDR4 2666 MHz speed rated at PC4 21300
  • CL19 CAS latency with 19-19-19 timing
  • 2 V low-voltage unbuffered non-ECC DIMM design
  • Tested compatible with ASUS P11C-I, P11C-M/4L and WS C246 PRO boards

64GB DDR4 kit for ASUS workstation boards

This 64GB kit contains four 16GB unbuffered DIMMs built for ASUS and Asmobile motherboards including the P11C-I, P11C-M/4L and WS C246 PRO models. It targets system builders and IT teams who need a validated memory upgrade for these specific workstation platforms.

DDR4 2666 CL19 1.2V specification

Each module runs at DDR4 2666 (PC4 21300) with CAS latency 19 and 19-19-19 timings at 1.2V. The 2Rx8 rank organisation and non-ECC unbuffered design must match the motherboard memory controller requirements for the system to post and run stably.

Sustained load behaviour with four populated slots

Populating all four slots places the maximum electrical load on the memory controller, so the kit operates at the rated 2666MHz rather than any higher speed. The modules have no heat spreaders, so case airflow must be sufficient to keep temperatures in check during prolonged workloads.

How it compares

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

Price $398.99
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 $6.23 per GB
Cheaper than about 63% 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 systemsASUS/Asmobile Motherboard 242 Motherboard P11C-I, 242 Motherboard P11C-M/4L, 246 Motherboard WS C246 PRO
In the box
Included items4 Memory RAM Sticks

Questions about this item

How does the 2666 MHz speed translate once the kit is installed in a real machine?

The four 16 GB modules run at DDR4 2666 with CL19 19-19-19 timing at 1.2 V, delivering PC4 21300 bandwidth across all four slots when the board and CPU support that frequency.

What does the 288-pin DDR4 interface cap in practice?

The 288-pin DDR4 DIMM form factor limits the kit to dual-channel boards with four slots; total capacity cannot exceed 64 GB and the system will run at the slowest installed module or CPU limit.

What physical clearance does the 288-pin DIMM kit need to fit the listed ASUS boards?

Each 16 GB stick is a standard-height 288-pin unbuffered DIMM without a heat spreader, so it fits the P11C-I, P11C-M/4L and WS C246 PRO slots without extra clearance.

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