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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

  • Capacity64GB (4 x 16GB)
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Timing19-19-19
  • Voltage1.2V
  • 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.

Highlights

  • 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

Specifications

BrandComputer Memory Solutions
ModelCM2048642666DIMM
Capacity64GB (4 x 16GB)
Type288-Pin DDR4 SDRAM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Timing19-19-19
Voltage1.2V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemASUS/Asmobile Motherboard 242 Motherboard P11C-I, 242 Motherboard P11C-M/4L, 246 Motherboard WS C246 PRO
Package Content4 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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