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Four green DDR4 DIMM sticks, no heat spreaders

Computer Memory Solutions

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

SKU CH-95EP-K3QRE

A 64 GB kit of four 16 GB DDR4 2666 CL19 DIMMs validated for ASUS TUF Z390 and WS Z390 motherboards

  • Capacity64GB (4 x 16GB)
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Timing19-19-19
  • Voltage1.2V
  • 64 GB total capacity from four 16 GB modules
  • DDR4 2666 MHz speed rated at PC4 21300
  • CL19 latency with 19-19-19 timing at 1.2 V
  • Unbuffered non-ECC 288-pin DIMMs using 2Rx8 configuration
  • Guaranteed compatible with listed ASUS TUF Z390 and WS Z390 motherboards

Capacity and kit configuration

This 64GB kit contains four 16GB DDR4 modules for a total of 64GB of system memory. It is built for desktop boards that accept 288-pin DIMMs and can run at 2666MHz with CL19 timing. The unbuffered, non-ECC design suits standard consumer and workstation platforms.

Platform and slot check

Verify that your motherboard has four DDR4 DIMM slots and supports a maximum capacity of 128GB. The kit is validated for the ASUS TUF Z390-PRO GAMING, TUF Z390M-PRO GAMING (WI-FI), WS Z390 PRO and X11SCZ-F boards. A 64-bit operating system is required to address more than 4GB of memory.

Build integration

Install the modules in matched pairs to maximise performance across the four slots. All memory will operate at the speed of the slowest module or the processor’s memory controller limit. The 1.2V modules need no extra cooling and leave headroom for future expansion up to the board’s 128GB ceiling.

Points forts

  • 64 GB total capacity from four 16 GB modules
  • DDR4 2666 MHz speed rated at PC4 21300
  • CL19 latency with 19-19-19 timing at 1.2 V
  • Unbuffered non-ECC 288-pin DIMMs using 2Rx8 configuration
  • Guaranteed compatible with listed ASUS TUF Z390 and WS Z390 motherboards

Caractéristiques

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 TUF Z390-PRO GAMING, TUF Z390M-PRO GAMING (WI-FI), WS Z390 PRO, X11SCZ-F
Package Content4 Memory RAM Sticks

Questions sur cet article

What does the kit contain and is anything else required to install it?

The package includes four 16 GB DDR4 288‑pin DIMM modules for a total of 64 GB. No extra parts are needed; install them directly into the motherboard’s four DIMM slots.

Why choose this 64 GB (4×16 GB) kit instead of a smaller or larger capacity?

The four 16 GB sticks fill all four slots on the supported ASUS TUF Z390 and WS Z390 boards, reaching the platform’s 128 GB maximum in matched pairs for optimal dual‑channel performance.

What does the DDR4‑2666 CL19 rating deliver in a real system?

The modules run at 2666 MHz with 19‑19‑19 timings at 1.2 V, so the memory controller operates at its rated DDR4‑2666 speed without overclocking, giving stable throughput for the compatible Z390 and X11SCZ‑F platforms.

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