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Green circuit board with black memory chips and gold edge connector

A-Tech

A-Tech 4GB DDR3 1066MHz PC3-8500 204-Pin SODIMM CL7 1.5V Laptop Memory

SKU CH-AT09-DJF8N

4 GB DDR3 SODIMM at 1066 MHz with CL7 latency and 1.5 V, replacement for Crucial CT2K4G3S1067M series modules

  • 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 CL7 timing accelerates data access speed
  • 204-pin SO-DIMM form factor fits standard laptop memory slots
  • 5V standard voltage ensures broad platform compatibility
  • Major-brand chips tested for dependable long-term operation

A-Tech 4GB DDR3 1066MHz Laptop Module

This A-Tech module provides 4GB of DDR3 memory in a 204-pin SO-DIMM form factor for laptop, notebook, and all-in-one systems. It runs at 1066MHz (PC3-8500) with CL7 latency and standard 1.5V voltage. The unbuffered, non-ECC design uses major-brand chips and serves as a direct replacement for several Crucial part numbers.

Suits DDR3 laptop upgrades.

This module suits owners of compatible AMD or Intel laptops needing a single 4GB stick to add capacity or replace a failed unit. Systems that require ECC error correction or registered buffering cannot use this unbuffered non-ECC part. Buyers wanting a matched pair or higher total capacity should look at multi-module kits.

1066MHz DDR3 speed and 204-pin fit decide

The decisive specification is the DDR3 1066MHz (PC3-8500) rating combined with the 204-pin SO-DIMM interface. Your laptop must support DDR3 at this speed and accept unbuffered non-ECC modules at 1.5V. Verify your system's memory specifications against these figures before ordering.

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

Does the module ship as a single 4GB stick or do I need to order a second one separately?

This listing is for one 4GB module. If your laptop has two slots and you want 8GB total, you would need to buy a second identical stick.

The title shows PC3-8500 and 1066MHz — are those two different speeds or the same rating?

They are the same specification. PC3-8500 is the bandwidth designation for DDR3 running at 1066MHz.

My older notebook only takes 1.5V DDR3 — will this 1.5V module work without a BIOS update?

The module operates at the standard 1.5V for DDR3, matching the voltage used by most DDR3-era laptops.

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