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Two green DDR3 laptop memory modules with gold contacts

SK hynix

SK hynix HMT451S6BFR8A-PB 8GB (2 x 4GB) DDR3 1600 laptop RAM

SKU CH-S000-6XK78

Two 4 GB DDR3-1600 SO-DIMM modules at 1.35 V with CL11 latency for laptop upgrades

  • Total capacity8 GB (2 × 4 GB)
  • Rated speedDDR3 1600 (PC3 12800)
  • CAS latencyCL11
  • Rated voltage1.35 V
  • Product type204-Pin DDR3 SO-DIMM
  • Dual-channel 8 GB kit for smoother multitasking
  • DDR3 1600 speed keeps older laptops responsive
  • Low 1.35 V operation reduces heat and power draw
  • CL11 latency supports snappy application loading
  • 204-pin SO-DIMM fits standard DDR3 laptop slots

Capacity and fit

This kit supplies 8 GB of DDR3 laptop memory as two matched 4 GB SO-DIMM modules. Each stick uses the standard 204-pin layout and runs at DDR3 1600 with a CAS latency of CL11. The low 1.35 V operating voltage suits thin-and-light notebooks that cannot tolerate standard 1.5 V parts.

Thermals and power

At 1.35 V the modules draw less current than regular DDR3, so they generate modest heat during typical office or web workloads. No active cooling is required; the chips rely on the laptop’s existing airflow and chassis conduction. Passive operation means zero added fan noise.

Build and connectors

The green PCB carries SK hynix DRAM packages in a standard SO-DIMM footprint that slots into any compatible 204-pin socket. Gold edge contacts resist oxidation over repeated upgrades. Because the kit is non-ECC and unbuffered, it works in consumer notebooks but not in servers that require registered or error-correcting memory.

How it compares

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

Price $19.99
Cheaper than about 87% of the 2,079 comparable items (median $70.99).
Total capacity 8 GB (2 × 4 GB)
Lower than about 60% of the 1,886 comparable items (median 16 GB).
Price per GB $2.50 per GB
Cheaper than about 93% of the 1,886 comparable items (median $5.94 per GB).

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Specifications

Product
Brand nameHynix
Product lineSODIMM Laptop Memory
Model nameHMT451S6BFR8A-PB
Total capacity8 GB (2 × 4 GB)
Product type204-Pin DDR3 SO-DIMM
Performance
Rated speedDDR3 1600 (PC3 12800)
Memory
CAS latencyCL11
ECC supportNo
Power
Rated voltage1.35 V

Questions about this item

How do I install the 204-Pin DDR3 SO-DIMM modules into my laptop?

Power off the laptop, remove the battery if accessible, open the memory compartment, align the module notch with the slot key, insert at an angle, then press down firmly until the side clips click.

What maintenance or replacement will the 8GB (2 x 4GB) kit need later?

No routine maintenance is required; keep the contacts clean and ensure the laptop vents stay dust-free. Replace the modules only if a memory test reports errors or capacity becomes insufficient.

What limit appears first when the DDR3 1600 CL11 1.35V kit runs under sustained load?

The CAS latency of CL11 and the 1.35 V operating voltage set the timing and power envelope; sustained heavy workloads will hit those timing constraints before thermal throttling becomes a factor.

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