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Two green DDR4 laptop memory sticks, black chips, gold contacts

SK hynix

SK hynix 16GB DDR4 2666 CL19 2x8GB laptop RAM

SKU CH-H97M-25KAS

Dual-channel 16 GB DDR4 SO-DIMM kit at 2666 MHz CL19 for laptop upgrades

  • Total capacity16 GB (2 × 8 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Kit configurationDual Channel Kit

Capacity 16GB (2 x 8GB)

  • Dual-channel kit doubles bandwidth with two matched 8GB modules
  • DDR4 2666 speed moves data at 21300 MT/s for responsive multitasking
  • Low 1.20V operation cuts power draw and heat in thin laptops
  • CL19 latency keeps timing tight for everyday workloads
  • 260-pin SO-DIMM form factor fits standard DDR4 laptop slots

SK hynix 16GB DDR4 2666 CL19 Kit

This SK hynix kit provides 16GB of DDR4 laptop memory in a dual-channel configuration of two 8GB modules. The 260-pin SO-DIMMs run at 2666MHz with CL19 latency and a standard 1.20V voltage. Unbuffered, non-ECC design suits mainstream notebook upgrades.

Suits standard DDR4 laptop slots.

Builders upgrading a compatible DDR4 notebook gain dual-channel bandwidth from this matched pair. Systems requiring ECC error correction or registered modules cannot use these unbuffered sticks. Buyers needing a single module or a different total capacity should look elsewhere.

2666MHz DDR4 speed with CL19 timing

The decisive specification is the 2666MHz data rate paired with CL19 CAS latency. This JEDEC-standard speed ensures broad compatibility with DDR4 platforms that support PC4-21300. Verify your laptop accepts 2666MHz SO-DIMMs before purchasing.

How it compares

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

Price $87.99
Pricier than about 57% of the 2,079 comparable items (median $70.99).
Total capacity 16 GB (2 × 8 GB)
Typical for this category: the median of 1,886 items is 16 GB.
Price per GB $5.50 per GB
Cheaper than about 56% of the 1,886 comparable items (median $5.94 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 nameHynix
Model nameHMA81GS6CJR8N-VK
Total capacity16 GB (2 × 8 GB)
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportNo
Buffer typeUnbuffered
Kit configurationDual Channel Kit
Power
Rated voltage1.2 V

Other versions of this model

1 more in the same range

Questions about this item

Does the DDR4 2666 interface cap real-world bandwidth at PC4-21300?

Yes, the modules are rated PC4-21300, so the peak transfer rate is limited to 21300 MB/s in practice.

What physical slot and clearance do the 260-pin SO-DIMMs need?

They require a standard 260-pin DDR4 SO-DIMM slot; each stick measures 3.2 inches long, 1.7 inches high and 0.2 inches thick.

How are the sticks installed and which step is often missed?

Align the notch with the key in the slot, insert at an angle, then press down firmly until both side clips click — the click is the step people skip.

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