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Two green DDR4 DIMM sticks without heat spreaders

Computer Memory Solutions

Computer Memory Solutions 32GB (2×16GB) DDR4 2666 CL19 DIMM — D21

SKU CH-4HTW-QQSJ5

A 32 GB DDR4 kit with two 16 GB unbuffered DIMMs running at 2666 MHz CL19 for HP Omen Obelisk 875 and Pavilion 690 desktops

  • Total capacity32 GB (2 × 16 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL19
  • Memory timings19-19-19
  • Rated voltage1.2 V
  • 32 GB capacity from two 16 GB modules
  • DDR4 2666 speed rated at PC4 21300
  • CL19 CAS latency with 19-19-19 timing
  • 20 V unbuffered non-ECC DIMM design
  • Validated for HP Omen Obelisk 875 and Pavilion 690 systems

32 GB DDR4 kit for HP Omen Obelisk

This 32 GB kit contains two 16 GB unbuffered DIMMs built to DDR4 2666 speed with CL19 timing. It is designed for HP Omen Obelisk 875-1xxx and Pavilion 690-0013d systems. The modules run at 1.20 V and use major-brand chips.

DDR4 2666 bandwidth and platform ceiling

The DDR4 2666 standard delivers a peak transfer rate of 21300 MB/s per module. Total throughput is capped by the memory controller in the host system, so installed modules cannot exceed that controller limit. Mixing speeds forces all memory to run at the slowest installed rate.

64 GB maximum capacity across four slots

The supported platform accepts up to 64 GB total across four DIMM sockets. This kit fills two sockets with 32 GB, leaving room for another matched pair to reach the limit. Builders needing more than 64 GB must choose a different platform.

How it compares

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

Price $162.99
Cheaper than about 60% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB (2 × 16 GB)
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $5.09 per GB
Cheaper than about 75% 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 nameCM2048642666DIMM
Total capacity32 GB (2 × 16 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 systemsHP/Compaq Omen Obelisk Desktop 875-1xxx Series, Pavilion 690-0013d Gaming Desktop PC
In the box
Included items2 Memory RAM Sticks

Questions about this item

Should I choose the 32GB (2×16GB) kit or a single 16GB module for my Omen Obelisk 875-1xxx?

The 32GB kit provides two matched 16GB DIMMs for dual-channel operation, which the board supports across its four slots; a single module would run in single-channel mode and leave capacity unused.

What does the DDR4-2666 CL19 rating deliver in an actual Omen Obelisk 875-1xxx desktop?

The modules run at 2666 MT/s with 19-19-19 timings at 1.20V, giving the rated bandwidth of PC4-21300 when the CPU memory controller supports that speed.

Does the 288-pin DDR4 DIMM interface limit the speed on my Pavilion 690-0013d?

The 288-pin DDR4 DIMM form factor carries the 2666 MT/s signal; the practical ceiling is the processor's memory controller, not the DIMM connector itself.

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