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Green rectangular circuit board with gold edge connectors and black memory chips

Mushkin Enhanced

Mushkin Enhanced 991559 2GB DDR2 667 laptop RAM

SKU CH-6DPK-DCBDX MPN 991559

2GB DDR2 667 SO-DIMM laptop memory module running at CL5 timing and 1.80V for older notebook upgrades

  • Capacity2GB
  • Type200-Pin DDR2 SO-DIMM
  • SpeedDDR2 667 (PC2 5300)
  • CAS LatencyCL5
  • Timing5-5-5-15
  • Voltage1.80V

Capacity 2GB

  • 2GB capacity enables smoother multitasking on DDR2 laptops
  • 667MHz speed delivers up to 5.3GB/s bandwidth per channel
  • CL5 latency at 5-5-5-15 timing improves data access response
  • 80V operation matches standard DDR2 SO-DIMM voltage requirements
  • 200-pin unbuffered non-ECC design fits compatible DDR2 laptop slots

2GB DDR2 SO-DIMM for older laptops

This 200-pin Mushkin Enhanced Essentials module adds 2GB of DDR2 667 memory to compatible notebooks. It runs at 1.80V with CL5 5-5-5-15 timings and is unbuffered non-ECC. The 991559 is a straightforward capacity upgrade for systems limited to DDR2 technology.

Suits DDR2 667 notebooks only

Owners of laptops that accept PC2 5300 SO-DIMMs can use this stick to improve multitasking responsiveness. Buyers whose machines require a different pin count, voltage or memory generation cannot install this module. Systems already at their maximum supported capacity will not benefit.

667MHz DDR2 speed rating

The module operates at 667MHz delivering up to 5.3GB per channel bandwidth. This single speed figure determines whether the part matches the laptop's memory controller. Verify the existing RAM runs at PC2 5300 before purchase.

Highlights

  • 2GB capacity enables smoother multitasking on DDR2 laptops
  • 667MHz speed delivers up to 5.3GB/s bandwidth per channel
  • CL5 latency at 5-5-5-15 timing improves data access response
  • 80V operation matches standard DDR2 SO-DIMM voltage requirements
  • 200-pin unbuffered non-ECC design fits compatible DDR2 laptop slots

Specifications

BrandMushkin Enhanced
SeriesEssentials
Model991559
Capacity2GB
Type200-Pin DDR2 SO-DIMM
SpeedDDR2 667 (PC2 5300)
CAS LatencyCL5
Timing5-5-5-15
Voltage1.80V
ECCNo
Buffered/RegisteredUnbuffered
Heat SpreaderNo
Shipping weight0.04 kg
Package size147 × 122 × 17 mm

Other versions of this model

1 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Does the 200-pin DDR2 SO-DIMM need any periodic cleaning or part replacement?

No maintenance is required; the module has no moving parts, no heat spreader, and no user-serviceable components.

What limit appears first when the CL5 5-5-5-15 module runs at full 667 MHz load for hours?

The memory controller’s 5.3 GB/s bandwidth ceiling is reached before any thermal or timing bottleneck on this unbuffered stick.

How much heat and power does the 1.80 V stick produce during all-day operation?

It draws 1.80 V with no heat spreader, so warmth stays low and fan noise is unaffected in a typical laptop chassis.

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