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Two green DDR4 DIMMs with black chips and gold contacts

SK hynix

SK hynix 16GB (2 x 8GB) DDR4 2666 desktop RAM

SKU CH-YKF6-T4HQ7

16 GB dual-channel kit at 2666 MHz with CL19 timing and 1.2 V operation

  • Total capacity16 GB (2 × 8 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • 16 GB dual-channel kit doubles bandwidth for smoother multitasking
  • DDR4 2666 MT/s data rate keeps pace with mainstream desktop workloads
  • CL19 latency at 0.75 ns cycle time delivers responsive system performance
  • 20 V operating voltage reduces power draw and heat output
  • 288-pin unbuffered non-ECC DIMMs install directly in standard desktop slots

16GB DDR4 2666 Dual-Channel Kit

This 16GB kit pairs two 8GB SK hynix DDR4 modules rated at 2666MHz. The PC4-21300 specification delivers standard desktop bandwidth for everyday workloads. Non-ECC unbuffered design suits mainstream consumer motherboards. CL19 latency and 1.2V operation keep timing and power within normal limits.

Suits Standard Desktop Upgrades

Builders repairing or upgrading a DDR4 system that accepts 288-pin DIMMs at 2666MHz will find this kit compatible. Users needing ECC error correction, registered modules, higher frequencies, lower latencies, or capacities beyond 16GB should select different memory. The 1Rx8 organisation and 0.75ns cycle time match typical consumer platform expectations.

DDR4 2666MHz Speed Rating

The decisive specification is the 2666MHz data rate (PC4-21300). Motherboards that officially support DDR4-2666 will run these modules at rated speed without manual adjustment. Systems limited to lower DDR4 speeds will downclock automatically, while boards requiring faster memory will not reach their target frequency with this kit.

How it compares

Measured against everything we stock in Desktop RAM, at today’s prices. Recalculated every night.

Price $82.99
Typical for this category: the median of 3,647 items is $90.99.
Total capacity 16 GB (2 × 8 GB)
Typical for this category: the median of 3,251 items is 16 GB.
Price per GB $5.19 per GB
Cheaper than about 70% of the 3,251 comparable items (median $6.75 per GB).

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Specifications

Product
Brand nameSK Hynix
Total capacity16 GB (2 × 8 GB)
Performance
Rated speedDDR4 2666 (PC4 21300)

Questions about this item

Will the 288-pin DIMM modules fit my standard desktop motherboard slots?

Yes, each 8 GB stick uses the 288-pin DDR4 form factor that matches every current desktop DIMM slot.

What is the correct way to seat the modules so the CL19 timing is recognised?

Align the notch with the slot key, press straight down until both side clips click, then enable XMP or set 2666 MHz manually in BIOS.

Do these non-ECC unbuffered modules need any periodic maintenance or replacement?

No routine maintenance is required; the 1.20 V DDR4 chips are rated for continuous operation and carry a lifetime warranty from SK hynix.

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