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Computer Memory Solutions

Computer Memory Solutions 16GB (2x8GB) DDR4 2666MHz CL19 DIMM memory upgrade

SKU CH-CP5K-GB80D

16 GB dual-channel DDR4-2666 kit with CL19 timing for Dell OptiPlex XE3 SFF and XPS 8930 desktops

  • Total capacity16 GB (2 × 8 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL19
  • Memory timings19-19-19
  • Rated voltage1.2 V
  • 16 GB dual-channel kit boosts multitasking headroom
  • 2666 MHz DDR4 speed matches system specification
  • CL19 timing keeps latency low for everyday workloads
  • 2 V operation reduces power draw and heat
  • Validated for Dell OptiPlex XE3 SFF and XPS 8930

Dell OptiPlex XE3 SFF and XPS 8930 upgrade

This 16 GB kit uses two 8 GB DDR4 DIMMs rated at 2666 MHz with CL19 timings. It is built for the Dell OptiPlex XE3 Small Form Factor and XPS 8930 desktop platforms. The modules are unbuffered, non-ECC and run at 1.20 V.

Replaces slower DDR4 or smaller capacity kits

The system supports up to 64 GB across four slots, so this kit doubles an 8 GB baseline or fills half the maximum. The jump is worth it when the current memory runs below 2666 MHz or when multitasking hits the 8 GB limit. All installed modules will operate at the speed of the slowest stick or the processor ceiling.

Standard 288-pin DIMM installation

Installation follows the usual DIMM procedure: align the notch, press until the latches click, and populate matched pairs for dual-channel performance. Common issues include mixing speeds that force the kit down to a lower rate, or exceeding the 64 GB board limit. A 64-bit operating system is required to address more than 4 GB.

How it compares

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

Price $104.99
Cheaper than about 67% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB (2 × 8 GB)
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $6.56 per GB
Cheaper than about 60% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM1024642666DIMM
Total capacity16 GB (2 × 8 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 systemsDell OptiPlex OptiPlex XE3 Small Form Factor (SFF), XPS 8930 Desktop
In the box
Included items2 Memory RAM Sticks

Questions about this item

Will the 288-pin DDR4 DIMM modules fit the four memory slots in the Dell OptiPlex XE3 SFF and XPS 8930 desktop?

Yes, the 288-pin DDR4 DIMMs are designed for the four standard slots in both systems.

What is the correct way to install the matched 8 GB pair, and what step do people often miss?

Insert both sticks into the same-coloured slots to run dual-channel, then press down firmly until the side clips click.

When would the 16 GB kit need to be replaced or expanded?

If you later need more than 16 GB, you can add two more modules up to the 64 GB maximum supported by the platform.

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