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Four green 260-pin DDR4 SODIMM sticks in static bags

Computer Memory Solutions

Computer Memory Solutions CM4096642666SO 128GB (4x32GB) DDR4 2666 CL19 SODIMM memory upgrade

SKU CH-K6PY-C8255

Four 32 GB DDR4 2666 CL19 SODIMM modules totalling 128 GB for Dell Precision 7540 and 7740 workstations

  • Capacity128GB (4 x 32GB)
  • Type260-Pin DDR4 SO-DIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Timing19-19-19
  • Voltage1.2V
  • 128 GB total capacity with four 32 GB modules
  • 2666 MHz DDR4 speed rated at PC4 21300
  • CL19 latency at 1.2 V for efficient operation
  • Validated for Dell Precision 7540 and 7740 mobile workstations
  • Unbuffered non-ECC SODIMM in 260-pin form factor

Precision mobile workstation memory kit

This 128GB kit contains four 32GB DDR4 2666 CL19 SODIMM modules built for Dell Precision Mobile Workstation 7540 and 7740 systems. It targets professionals who need the maximum supported memory capacity for virtualisation, large datasets or multi-application workflows on these specific mobile platforms.

260-pin SODIMM form factor fits four slots

Each module uses the standard 260-pin SO-DIMM layout and runs at 1.2V without ECC or registered buffering. The kit occupies all four memory sockets in the compatible workstations, so no additional modules can be added and existing memory must be removed before installation.

Sustained CL19 timing at 2666 MHz

The 19-19-19 latency profile is maintained across extended workloads because the unbuffered 2Rx8 organisation distributes electrical load evenly across ranks. All modules operate at the lowest common speed if mixed with slower memory, so a matched 4-piece kit avoids down-clocking during long rendering or compilation sessions.

Points forts

  • 128 GB total capacity with four 32 GB modules
  • 2666 MHz DDR4 speed rated at PC4 21300
  • CL19 latency at 1.2 V for efficient operation
  • Validated for Dell Precision 7540 and 7740 mobile workstations
  • Unbuffered non-ECC SODIMM in 260-pin form factor

Caractéristiques

BrandComputer Memory Solutions
ModelCM4096642666SO
Capacity128GB (4 x 32GB)
Type260-Pin DDR4 SO-DIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Timing19-19-19
Voltage1.2V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemDell Precision Mobile Workstation 7540, Precision Mobile Workstation 7740
Package Content4 Memory RAM Sticks

Questions sur cet article

What CAS latency will the CL19 timing enforce under sustained load?

The modules run at CL19 with 19-19-19 timing, so the first timing limit you hit during continuous operation is the 19-cycle CAS latency.

How much power does the 1.2 V kit draw when running all day in a Dell Precision 7540?

Each 32 GB stick operates at 1.2 V unbuffered without a heat spreader, keeping power draw and heat low for all-day workloads in the 7540 or 7740.

Which Dell mobile workstation must I already own for this 260-pin SODIMM kit to fit?

The kit is validated for the Dell Precision Mobile Workstation 7540 and Precision Mobile Workstation 7740, both of which use 260-pin DDR4 SODIMM slots.

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