We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Two green DDR4 SO-DIMM sticks, 64GB kit

Computer Memory Solutions

Computer Memory Solutions 64GB (2x32GB) DDR4 2666 CL19 SO-DIMM memory upgrade for Dell Precision 7540 7740

SKU CH-9A7T-SV60F

64 GB kit of two 32 GB DDR4 2666 CL19 SO-DIMM modules for Dell Precision 7540 and 7740 mobile workstations

  • 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 capacity with two 32 GB modules for heavy multitasking
  • DDR4 2666 speed rated at PC4 21300 for fast data rates
  • CL19 latency timing 19-19-19 keeps response tight
  • 2 V operation reduces power draw and heat
  • Validated for Dell Precision 7540 and 7740 mobile workstations

Compatible Dell Precision Upgrade

This 64GB kit uses two 32GB DDR4 SO-DIMM modules rated at 2666MHz with CL19 timing. It is built for Dell Precision Mobile Workstation 7540 and 7740 systems that require non-ECC, unbuffered memory. The modules run at 1.2V and use 260-pin connectors.

Fits Four-Socket Layout

The workstations accept up to 128GB across four sockets, so this pair occupies half the slots and leaves room for another matched kit. All installed memory will operate at the speed of the slowest module or the processor limit. A 64-bit operating system is needed to address the full capacity.

For Non-ECC Core i9/i7/i5 Builds

The kit suits buyers upgrading Intel Core i9, i7 or i5 configurations that require non-ECC SO-DIMMs. It does not meet the ECC requirement of Xeon-based models, so those systems need a different module type. Users wanting more than 64GB must add a second matched pair.

How it compares

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

Price $298.99
Cheaper than about 54% 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 $4.67 per GB
Cheaper than about 80% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM4096642666SO
Total capacity64 GB (2 × 32 GB)
Product type260-Pin DDR4 SO-DIMM
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 systemsDell Precision Mobile Workstation 7540, Precision Mobile Workstation 7740
In the box
Included items2 Memory RAM Sticks

Questions about this item

Will the 2666 MHz speed hold under continuous heavy workloads?

The modules run at 2666 MHz with CL19 timings and 1.2 V; sustained performance is limited by the CPU memory controller and thermal design of the Dell Precision 7540 or 7740.

How much heat or noise do the 2Rx8 sticks add during all-day operation?

These unbuffered SO-DIMMs have no heat spreader and draw 1.2 V; they add negligible heat and produce no audible noise inside the Precision 7540 or 7740 chassis.

Do I need a 64-bit operating system already installed to use the full 64 GB?

Yes, a 64-bit OS is required to address more than 4 GB; the Precision 7540 or 7740 must also have an Intel Core i9, i7 or i5 processor that supports non-ECC DDR4 SO-DIMMs.

More in Model-Specific Memory Upgrades

Similar items