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Green circuit board with black memory chips and gold edge connector

Mushkin Enhanced

Mushkin Enhanced 991685 4GB 200-Pin DDR2 SO-DIMM 667 laptop RAM

SKU CH-DDBA-2QWAD MPN 991685

4GB DDR2 SO-DIMM runs at 667MHz with CL5 timing for responsive multitasking

  • Total capacity4 GB
  • Rated speedDDR2 667 (PC2 5300)
  • CAS latencyCL5
  • Memory timings5-5-5-15
  • Rated voltage1.8 V
  • Buffer typeUnbuffered

Capacity 4GB

  • 4GB capacity adds multitasking headroom for everyday workloads
  • DDR2 667 rated at 667MHz delivers up to 5.3GB/s bandwidth
  • CAS latency CL5 with 5-5-5-15 timings reduces access delay
  • 80V operation matches standard DDR2 SO-DIMM power requirements
  • 200-pin unbuffered module installs directly into compatible laptop slots

DDR2 667 SO-DIMM for older laptops

This 200-pin module adds 4GB of DDR2 memory to notebooks that accept PC2 5300 speeds. It suits users extending the life of a legacy system for everyday tasks. The unbuffered design works with standard laptop slots that support 1.80V operation.

Bandwidth capped at 5.3GB per channel

The DDR2 667 interface limits peak throughput to 5.3GB per channel regardless of other components. CAS latency of CL5 and 5-5-5-15 timings set the response floor for random access. No heat spreader is fitted, so sustained loads rely on chassis airflow alone.

4GB capacity handles light multitasking

A single 4GB stick covers web browsing, office applications and media playback on compatible hardware. Memory-heavy workloads such as virtualisation or modern gaming will exhaust the available space quickly. Systems limited to one SO-DIMM slot cannot expand beyond this module.

How it compares

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

Price $54.99
Cheaper than about 57% 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 $13.75 per GB
Pricier than about 90% 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 nameMushkin Enhanced
Product lineEssentials
Model name991685
Total capacity4 GB
Product type200-Pin DDR2 SO-DIMM
Performance
Rated speedDDR2 667 (PC2 5300)
Memory
CAS latencyCL5
Memory timings5-5-5-15
Buffer typeUnbuffered
Heat spreaderNo
Power
Rated voltage1.8 V
Size & build
Shipping weight0.05 kg
Package size159 × 133 × 19 mm

Other versions of this model

1 more in the same range

Questions about this item

Should I choose the 4 GB DDR2 667 module or a different capacity for my laptop?

This listing is a single 4 GB DDR2 667 SO-DIMM. If your laptop has two slots and supports 4 GB per slot, adding a second identical module will give you 8 GB total.

What does the 667 MHz rating deliver in real use?

The module runs at 667 MHz with CL5 timing, providing up to 5.3 GB/s bandwidth per channel for everyday multitasking and program switching.

Will the 200-pin DDR2 SO-DIMM fit my laptop's memory slot?

Yes, the 200-pin DDR2 SO-DIMM form factor matches laptops that require DDR2 667 (PC2 5300) memory at 1.80 V.

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