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Two green DDR2 SODIMM sticks with black chips, 200-pin form factor

Computer Memory Solutions

Computer Memory Solutions 4GB (2x2GB) DDR2 800MHz SODIMM for iMac 20-inch 2.66GHz

SKU CH-WHRF-SSXY1

A matched pair of 2 GB DDR2-800 SO-DIMMs validated for the 20-inch iMac 2.66 GHz (MB324LL/A)

  • Total capacity4 GB (2 × 2 GB)
  • Rated speedDDR2 800 (PC2 6400)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL6
  • Memory timings6-6-6
  • Rated voltage1.8 V
  • 4GB dual-channel kit boosts multitasking on iMac 20-inch 2.66GHz
  • DDR2 800MHz PC2-6400 speed matches factory specification exactly
  • 200-pin SO-DIMM form factor fits both memory slots without adapters
  • 8V unbuffered non-ECC modules run at CL6 6-6-6 timings
  • Lifetime warranty from Computer Memory Solutions covers both sticks

Targeted iMac Memory Upgrade

This 4 GB kit contains two 2 GB DDR2 800 MHz SO-DIMM modules built specifically for the 20-inch iMac with a 2.66 GHz Intel Core 2 Duo processor. The unbuffered, non-ECC sticks install directly into the two available memory slots without configuration changes.

DDR2 800 MHz SO-DIMM Interface

Each module uses the 200-pin DDR2 SO-DIMM form factor and runs at PC2-6400 speed with CL6 timing at 1.8 V. This exact specification is required for the iMac to recognise and operate the memory at its rated frequency.

4 GB Total Capacity for Everyday Tasks

The 4 GB total provides comfortable headroom for web browsing, office applications and light media playback on this platform. Demanding workloads such as modern video editing or virtual machines will exceed the available memory and the system's 6 GB maximum limit.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $15.99
Cheaper than about 93% of the 21,161 comparable items (median $397.99).
Total capacity 4 GB (2 × 2 GB)
Lower than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $4.00 per GB
Cheaper than about 84% of the 20,941 comparable items (median $8.19 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 nameComputer Memory Solutions
Model nameCM256646400SO
Total capacity4 GB (2 × 2 GB)
Product type200-Pin DDR2 SO-DIMM
Performance
Rated speedDDR2 800 (PC2 6400)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL6
Memory timings6-6-6
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.8 V
Compatibility
Compatible systemsApple Imac 20 in 2.66 GHz Intel Core 2 Duo (MB324Ll/A)
In the box
Included items2 Memory RAM Sticks

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