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Green rectangular DDR3 SODIMM module with gold contacts and black chips

A-Tech

A-Tech 4GB DDR3 1066MHz PC3-8500 204-Pin SODIMM CL7 1.5V for Hynix HMT351S6AFR8C-G7 laptop RAM

SKU CH-FFM5-6EWGX

A 4GB DDR3 1066MHz SODIMM module with CL7 latency and 1.5V operation for laptop upgrades

  • Total capacity4 GB
  • Rated speedDDR3 1066 (PC3 8500)
  • CAS latencyCL7
  • Rated voltage1.5 V
  • Buffer typeUnbuffered
  • Recommended forAMD & Intel Compatible
  • 4GB capacity expands multitasking headroom for everyday workloads
  • DDR3 1066MHz PC3-8500 speed matches original Hynix module timing
  • CL7 latency keeps data access snappy for responsive feel
  • 5V standard voltage drops straight into existing laptop slots
  • 204-pin SO-DIMM form factor fits compatible notebooks without adapters

4GB DDR3 1066MHz CL7 SODIMM

This 4GB DDR3 module runs at 1066MHz with CL7 latency and 1.5V operation. It uses the 204-pin SO-DIMM form factor for laptop, notebook and all-in-one systems. The unbuffered, non-ECC design matches standard DDR3 requirements. A-Tech tests every module for reliable performance.

Replacement for listed Hynix part numbers

This module replaces Hynix HMT351S6AFR8C-G7, HMT351S6BFR8C-G7, HMT351S6CFR8C-G7, HMT351S6EFR8C-G7 and HMT451S6MMR8C-G7. It suits owners of compatible AMD or Intel platforms that accept DDR3 1066MHz SO-DIMMs. Buyers whose systems require ECC, registered memory, a different voltage, or a different DDR generation should verify specifications first.

Verify DDR3 1066MHz CL7 support before buying

The single specification that decides fit is whether your system accepts DDR3 1066MHz (PC3-8500) SO-DIMMs with CL7 timing at 1.5V. Check your laptop or all-in-one manual for supported memory speed, latency, voltage and maximum capacity per slot. Only purchase when all four values match.

How it compares

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

Price $18.99
Cheaper than about 89% 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 $4.75 per GB
Cheaper than about 70% 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 nameA-Tech
Total capacity4 GB
Product type204-Pin DDR3 SO-DIMM
Performance
Rated speedDDR3 1066 (PC3 8500)
Memory
CAS latencyCL7
ECC supportNo
Buffer typeUnbuffered
Power
Rated voltage1.5 V
Compatibility
Recommended forAMD & Intel Compatible

Questions about this item

How do I install the 204-pin DDR3 SODIMM and what step is often missed?

Power off the laptop, remove the battery if accessible, open the memory compartment, align the notch on the 204-pin module with the slot key, insert at an angle, then press down firmly until both side clips click — the step many miss is pressing evenly on both ends until the clips engage fully.

What maintenance or replacement will this 4GB DDR3 1066MHz module need later?

No routine maintenance is required; keep the laptop vents clear so the 1.5V module stays cool, and replace it only if memory errors appear or you need more than 4GB capacity.

What limit appears first under sustained use with this CL7 DDR3 1066MHz memory?

The 4GB capacity ceiling is reached before bandwidth or latency limits, causing swapping to storage during heavy multitasking.

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