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Two green DDR4 DIMM sticks, 288-pin, 2x4GB kit

Computer Memory Solutions

Computer Memory Solutions 2x4GB DDR4 2666MHz CL19 2Rx8 DIMM memory upgrade

SKU CH-VX2C-8SEHR

8GB DDR4 kit of two 4GB DIMMs running at 2666MHz with CL19 timing and 1.2V operation

  • Total capacity4 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latency19
  • Memory timings19-19-19
  • Rated voltage1.2 V
  • 8 GB total capacity from a matched 2-piece kit
  • DDR4 2666 MHz speed rated at PC4-21300
  • CL19 latency with 19-19-19 timing at 1.2 V
  • 288-pin unbuffered non-ECC DIMM with 2Rx8 organisation
  • Lifetime repair or exchange warranty against manufacturing defects

Kit composition and fit

This kit contains two 4GB DDR4 DIMMs for a total of 8GB. The modules are 288-pin unbuffered non-ECC memory designed for desktop systems that accept standard DDR4 DIMMs. Each stick uses a 2Rx8 organisation and operates at 1.2V.

Decisive specification

The rated speed is DDR4 2666 (PC4 21300) with CL19 timings of 19-19-19. If the platform or existing memory runs at a lower data rate, all installed modules will operate at that slower speed. Matching the rated speed and latency avoids down-clocking the whole array.

Capacity and headroom

Eight gigabytes handles everyday multitasking, office suites and light content creation. A 64-bit operating system is required to address more than 4GB. Demanding workloads such as heavy virtualisation, large media projects or modern gaming at high settings will exceed this capacity.

How it compares

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

Price $35.99
Cheaper than about 82% of the 21,161 comparable items (median $397.99).
Total capacity 4 GB
Lower than about 90% of the 20,941 comparable items (median 32 GB).
CAS latency 19
Lower than about 70% of the 483 comparable items (median 22).
Price per GB $9.00 per GB
Typical for this category: the median of 20,941 items is $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
Part numberCM512642666DIMM
Total capacity4 GB
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latency19
Memory timings19-19-19
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Power
Rated voltage1.2 V

Questions about this item

Will these 2666 MHz modules run at that speed on my board?

They are rated for DDR4-2666 and will operate at that frequency if the CPU and motherboard support it; otherwise they downshift to the highest speed the platform allows.

What does the PC4 21300 label on these DIMMs indicate?

It is the industry name for DDR4-2666 memory, showing the peak transfer rate class for this speed grade.

Do these 288-pin DIMMs fit a standard desktop DDR4 slot?

Yes, they use the 288-pin DDR4 DIMM form factor used by current desktop motherboards.

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