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Green circuit board with black memory chips and gold edge connector

SK hynix

SK hynix HMA451S6AFR8N-TF 4GB DDR4 2133 laptop RAM

SKU CH-XFHM-SQV2M MPN HMA451S6AFR8N-TF

4 GB DDR4 laptop module running at 2133 MHz with CL15 timing and 1.20 V operation

  • Total capacity4 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Product type260-Pin DDR4 SO-DIMM
  • 4 GB capacity adds responsive multitasking headroom
  • DDR4 2133 MT/s speed delivers snappy data throughput
  • CL15 latency keeps access times tight
  • 20 V operation reduces power draw and heat
  • 260-pin SO-DIMM fits standard laptop slots

4 GB DDR4 2133 SO-DIMM

This SK hynix module delivers 4 GB of DDR4 memory at 2133 MHz with a CL15 latency. It uses the standard 260-pin SO-DIMM form factor and runs at 1.20 V. The stick is unbuffered and non-ECC, making it a direct drop-in upgrade for compatible laptops.

Ideal for capacity upgrades

The single 4 GB stick suits owners of DDR4 laptops that have a free slot and need more memory for everyday multitasking. Buyers whose machines require ECC or registered memory should look elsewhere, as this module provides neither. Systems limited to a maximum of 4 GB total will not benefit from adding this unit.

260-pin DDR4 SO-DIMM interface

The module fits only laptops that accept 260-pin DDR4 SO-DIMMs operating at 1.20 V. Verify that your device supports DDR4-2133 (PC4-17000) and unbuffered, non-ECC memory before purchasing.

How it compares

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

Price $31.99
Cheaper than about 72% of the 2,079 comparable items (median $70.99).
Total capacity 4 GB
Lower than about 80% of the 1,886 comparable items (median 16 GB).
Price per GB $8.00 per GB
Pricier than about 70% of the 1,886 comparable items (median $5.94 per GB).

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Specifications

Product
Brand nameHynix
Product lineSODIMM Laptop Memory
Model nameHMA451S6AFR8N-TF
Total capacity4 GB
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2133 (PC4 17000)
Memory
CAS latencyCL15
ECC supportNo
Buffer typeUnbuffered
Power
Rated voltage1.2 V

Questions about this item

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

Yes, the 260-pin DDR4 SO-DIMM form factor matches the standard laptop memory slot for this generation.

What is the correct way to seat the module so it locks in place?

Align the notch with the slot key, insert at an angle, then press down firmly until both side clips click audibly.

Does this 1.20 V unbuffered module need any firmware updates or periodic replacement?

No firmware is required; the module is maintenance-free and only needs replacement if a fault develops or capacity becomes insufficient.

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