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

Mushkin Enhanced

Mushkin Enhanced 991556 2GB DDR2 667 desktop RAM

SKU CH-KJTZ-CEJ83 MPN 991556

A 2GB DDR2 desktop module rated at 667MHz with CL5 timing and 1.80V operation

  • Total capacity2 GB
  • Rated speedDDR2 667 (PC2 5300)
  • CAS latencyCL5
  • Memory timings5-5-5-15
  • Rated voltage1.8 V
  • 2GB capacity enables smoother multitasking and faster program switching
  • DDR2 667 rated speed provides up to 5.3GB bandwidth per channel
  • CL5 CAS latency with 5-5-5-15 timing delivers low-latency responsiveness
  • 80V operating voltage ensures stable performance in daily workloads
  • Quality components and rigorous testing guarantee reliability for demanding use

Module identity

The Mushkin Enhanced 991556 is a 2GB DDR2 667 desktop memory module built for systems that require PC2 5300 memory. It targets owners of older platforms needing a direct replacement or a capacity increase.

Bandwidth ceiling

The DDR2 667 interface delivers up to 5.3GB per channel, which is the practical throughput limit of this standard. Higher speeds or larger modules would need a different memory generation and compatible motherboard.

Deciding specification

The 1.80V operating voltage and CL5 5-5-5-15 timing define whether this module matches the board’s memory controller requirements. A mismatch in voltage or timing will prevent the system from posting.

How it compares

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

Price $13.99
Cheaper than about 93% of the 3,647 comparable items (median $90.99).
Total capacity 2 GB
Lower than about 95% of the 3,251 comparable items (median 16 GB).
Price per GB $7.00 per GB
Typical for this category: the median of 3,251 items is $6.75 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
Model name991556
Total capacity2 GB
Performance
Rated speedDDR2 667 (PC2 5300)
Memory
CAS latencyCL5
Memory timings5-5-5-15
Heat spreaderNo
Power
Rated voltage1.8 V
Size & build
Shipping weight0.03 kg
Package size146 × 57 × 15 mm

Questions about this item

Should I pick the 2 GB module or add a second one for 4 GB?

Each module is 2 GB; installing two gives 4 GB total if your board has a free slot and supports that capacity.

What does the 667 MHz rating deliver inside a desktop?

It provides up to 5.3 GB/s bandwidth per channel at CL5 5-5-5-15 timing.

Will the PC2 5300 DDR2 interface limit speed on my motherboard?

The module runs at DDR2 667; the board's memory controller caps the actual data rate.

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