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Green circuit board SODIMM with black memory chips and gold edge contacts

A-Tech

A-Tech 4GB DDR3 1600MHz PC3-12800 CL11 1.5V 204-Pin SODIMM Laptop RAM

SKU CH-CKNW-FM85S

4 GB DDR3 1600 MHz SODIMM upgrade for compatible HP laptops, CL11 1.5 V unbuffered module

  • Total capacity4 GB
  • Rated speedDDR3 1600 (PC3 12800)
  • CAS latencyCL11
  • Rated voltage1.5 V
  • Buffer typeUnbuffered
  • Recommended forAMD & Intel Compatible
  • 4GB capacity lets you run more applications smoothly
  • DDR3 1600MHz PC3-12800 speed accelerates data transfer rates
  • CL11 CAS latency delivers responsive memory access timing
  • 5V standard voltage ensures broad laptop compatibility
  • 204-pin SODIMM form factor fits standard DDR3 laptop slots

A-Tech 4GB DDR3 1600MHz SODIMM

This A-Tech module is a 4GB DDR3 1600MHz SO-DIMM built to the PC3-12800 standard. It uses a 204-pin edge connector and runs at the standard 1.50V DDR3 voltage. The stick is unbuffered, non-ECC and carries a CL11 latency rating. It is sold new as a direct replacement for several HP part numbers including 637233-352, 637233-952, 652972-005, 656290-150, H2P64AA and H2P64AT.

Laptop owners matching the listed HP part numbers

This memory suits owners of compatible HP laptops, notebooks or all-in-one systems that specify a 204-pin DDR3 1600MHz SO-DIMM and accept 1.50V unbuffered modules. It will not fit systems that require a different pin count, a different voltage such as 1.35V, or modules with ECC or registered buffers. Buyers who need more than 4GB per slot or a higher speed grade should verify their platform limits before ordering.

204-pin DDR3 SO-DIMM form factor

The 204-pin DDR3 SO-DIMM form factor is the single specification that decides whether this module will physically install and electrically function in a given machine. Only systems designed for 204-pin DDR3 SO-DIMMs at 1.50V can accept this part.

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 1600 (PC3 12800)
Memory
CAS latencyCL11
ECC supportNo
Buffer typeUnbuffered
Power
Rated voltage1.5 V
Compatibility
Recommended forAMD & Intel Compatible

Questions about this item

How do I confirm the module is running at 1600 MHz and CL11 after installation?

Open Task Manager or CPU-Z and check the memory tab; it should show 1600 MHz speed and 11-11-11 timings at 1.5 V.

What comes in the box and do I need any extra parts to install it?

The box contains one 4 GB 204-pin DDR3 SO-DIMM; no extra cables, brackets or tools are required for laptop installation.

Should I choose the 4 GB single module or look for a different capacity?

This listing is a single 4 GB module; if your laptop has two slots and supports 8 GB total, adding a second identical stick will enable dual-channel performance.

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