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Two green DDR2 SO-DIMM sticks, 200-pin, no heat spreader

Computer Memory Solutions

Computer Memory Solutions CM256645300SO 4GB (2x2GB) DDR2 667MHz PC2-5300 SODIMM memory upgrade

SKU CH-ZBCG-79RRC

A 4 GB DDR2 SODIMM kit (two 2 GB modules at 667 MHz, PC2-5300, CL5, 1.8 V) validated for the mid-2007 iMac

  • Total capacity4 GB (2 × 2 GB)
  • Rated speedDDR2 667 (PC2 5300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL5
  • Memory timings5-5-5
  • Rated voltage1.8 V
  • Ready-to-install 4 GB kit for Apple iMac (Mid 2007)
  • 200-pin DDR2 SO-DIMM modules run at 667 MHz PC2-5300
  • CL5 5-5-5 timing at 1.8 V for stable operation
  • Unbuffered non-ECC design matches original system specs
  • Two matched 2 GB sticks enable dual-channel performance

Purpose-built upgrade for mid-2007 iMac

This 4 GB kit delivers two 2 GB DDR2 667 MHz SO-DIMM modules designed specifically for the Apple iMac (Mid 2007). The unbuffered, non-ECC memory operates at 1.8 V with CL5 timing and uses major-brand chips. It targets owners of that model who need a straightforward capacity increase without compatibility guesswork.

Capacity and headroom

The kit provides 4 GB total across two 200-pin sticks, matching the PC2-5300 speed rating. The supplier notes the Mid 2007 iMac can address up to 6 GB when populated with a 4 GB and a 2 GB module in its two slots. This kit fills both slots with 2 GB each, leaving the upper 2 GB of the system's maximum addressable memory unused.

Thermals, noise and power

These modules have no heat spreaders and draw power only from the SO-DIMM slots at the standard 1.8 V DDR2 level. They add no moving parts, so acoustic output remains unchanged. Power consumption stays within the original platform's memory-bus budget, requiring no extra cooling or power-supply headroom beyond what the iMac already provides.

How it compares

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

Price $12.99
Cheaper than about 95% 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 $3.25 per GB
Cheaper than about 88% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM256645300SO
Total capacity4 GB (2 × 2 GB)
Product type200-Pin DDR2 SO-DIMM
Performance
Rated speedDDR2 667 (PC2 5300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL5
Memory timings5-5-5
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.8 V
Compatibility
Compatible systemsApple Imac (Mid 2007)
In the box
Included items2 Memory RAM Sticks

Questions about this item

Will this 4 GB DDR2-667 kit run in the two slots of my 2007 iMac without changing voltage settings?

The modules operate at the standard 1.8 V used by the Mid 2007 iMac, so they install directly without any BIOS voltage adjustment.

How can I confirm both 2 GB sticks are recognised at 667 MHz after installation?

Open System Profiler or About This Mac; each slot should show a 2 GB PC2-5300 SODIMM running at 667 MHz with CL5 timing.

Does the package include only the two SODIMMs, or are tools or adapters also supplied?

The box contains exactly the two 200-pin DDR2 SODIMM sticks; no screwdrivers, brackets or other accessories are included.

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