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Two green DDR2 SODIMM sticks with gold contacts and black chips

A-Tech

A-Tech 4GB (2x2GB) DDR2 800MHz SODIMM PC2-6400 CL6 1.8V 200-Pin Laptop RAM

SKU CH-HZ7V-HJMA7

A 4 GB dual-channel DDR2 SODIMM kit running at 800 MHz with CL6 timing and 1.8 V for older laptops

  • Total capacity4 GB (2 × 2 GB)
  • Rated speedDDR2 800 (PC2 6400)
  • CAS latencyCL6
  • Rated voltage1.8 V
  • Buffer typeUnbuffered
  • Kit configurationDual Channel Kit

Capacity 4GB (2 x 2GB)

Speed DDR2 800 (PC2 6400)

CAS Latency CL6

  • 4GB dual-channel kit expands system memory for smoother multitasking
  • DDR2 800MHz speed accelerates data transfer and application loading
  • CL6 latency at 1.8V ensures responsive performance with standard power
  • 200-pin SO-DIMM form factor fits compatible laptop memory slots
  • Rigorously tested modules deliver reliable operation for DDR2 systems

DDR2 SODIMM kit for older laptops

This 4 GB kit contains two 2 GB DDR2 800 MHz modules built to the PC2-6400 standard with CL6 latency. They use the 200-pin SO-DIMM form factor and run at the standard 1.8 V. The kit targets owners of DDR2-era laptops, notebooks or all-in-one systems that need a straightforward memory upgrade.

Low-voltage DDR2 thermals and power

Operating at the JEDEC-defined 1.8 V keeps heat output modest and power draw low during normal workloads. The unbuffered, non-ECC design adds no extra active circuitry, so the modules run quietly without requiring additional cooling beyond the laptop's existing airflow.

Dual-channel kit simplifies installation

The matched pair enables dual-channel operation on compatible platforms, delivering the bandwidth uplift that comes from interleaved access. No extra software or drivers are included; the benefit comes purely from the hardware configuration. Buyers who need ECC, registered modules or a different DDR generation should look elsewhere.

How it compares

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

Price $23.99
Cheaper than about 81% of the 2,079 comparable items (median $70.99).
Total capacity 4 GB (2 × 2 GB)
Lower than about 80% of the 1,886 comparable items (median 16 GB).
Price per GB $6.00 per GB
Typical for this category: the median of 1,886 items is $5.94 per GB.

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Specifications

Product
Brand nameA-Tech
Product lineA-Tech DDR2 Laptop Memory RAM
Total capacity4 GB (2 × 2 GB)
Product type200-Pin DDR2 SO-DIMM
Performance
Rated speedDDR2 800 (PC2 6400)
Memory
CAS latencyCL6
ECC supportNo
Buffer typeUnbuffered
Kit configurationDual Channel Kit
Power
Rated voltage1.8 V
Compatibility
Recommended forAMD & Intel Compatible

Other versions of this model

5 more in the same range

Questions about this item

How do I install the 200-pin DDR2 SODIMM modules and what step is often missed?

Power off the laptop, remove the battery if accessible, open the memory door, align the notch on each 200-pin module with the slot key, press firmly until both side clips click, then replace the door and battery before booting.

What maintenance or replacement will the CL6 1.8V DDR2 kit need later?

No scheduled maintenance is required; keep the laptop vents clear so the modules stay cool, and replace the kit only if a memory test reports errors or the system fails to boot with both modules installed.

What limit appears first under sustained load with the PC2-6400 800MHz dual-channel kit?

The DDR2 800MHz bandwidth ceiling is reached before latency becomes a bottleneck, so prolonged heavy workloads will hit the 6400 MB/s transfer limit of the PC2-6400 specification first.

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