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Green rectangular SO-DIMM circuit board with black memory chips and gold edge contacts

SK hynix

SK hynix HMA81GS6DJR8N-XN 8GB DDR4-3200 CL22 SO-DIMM laptop RAM

SKU CH-QH89-9994B

8GB DDR4-3200 CL22 SO-DIMM laptop memory module runs at 1.20V with 260-pin unbuffered design

  • Total capacity8 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Product type260-Pin DDR4 SO-DIMM
  • 8 GB capacity adds responsive multitasking headroom
  • DDR4-3200 speed delivers 25600 MT/s bandwidth
  • CL22 latency keeps timing tight
  • 20 V operation reduces power draw
  • 260-pin SO-DIMM fits standard laptop slots

8 GB DDR4-3200 SO-DIMM laptop memory

This SK hynix module delivers 8 GB of DDR4 memory in a 260-pin SO-DIMM form factor. It operates at 3200 MT/s with a CAS latency of CL22 and runs at the standard 1.20 V. The unbuffered, non-ECC design suits mainstream laptop upgrades.

Suitable for single-slot laptop upgrades

It fits users adding capacity to a free SO-DIMM slot or replacing one module in a two-slot system. Buyers needing ECC error correction or registered signal buffering should look elsewhere, as this module provides neither. Systems limited to lower DDR4 speeds will still accept the module but run it at the platform maximum.

3200 MT/s DDR4 speed rating

The decisive specification is the DDR4-3200 (PC4-25600) speed grade. Verify that the laptop's memory controller supports this data rate before purchase, as an incompatible platform will not boot or will fall back to a lower speed not guaranteed by this module.

How it compares

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

Price $58.99
Cheaper than about 55% of the 2,079 comparable items (median $70.99).
Total capacity 8 GB
Lower than about 60% of the 1,886 comparable items (median 16 GB).
Price per GB $7.37 per GB
Pricier than about 64% 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
Product lineSODIMM Laptop Memory
Model nameHMA81GS6DJR8N-XN
Total capacity8 GB
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Memory
CAS latencyCL22
ECC supportNo
Buffer typeUnbuffered
Power
Rated voltage1.2 V

Questions about this item

Will the 260-pin DDR4 SO-DIMM fit my laptop's memory slot?

The module uses the standard 260-pin DDR4 SO-DIMM form factor. It fits any laptop slot designed for DDR4 SO-DIMM memory.

What is the correct way to seat the module and which step do people often miss?

Align the notch on the module edge with the key in the slot, insert straight in until the gold contacts are fully hidden, then press down evenly until the side clips snap into the notches on both sides.

Does the CL22 1.20V module need any firmware updates or thermal-pad replacement over time?

No firmware updates are required. The module runs at the standard 1.20V with no user-serviceable parts, so no thermal-pad replacement or ongoing maintenance is needed.

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