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Two green SO-DIMM circuit boards with gold contacts

Computer Memory Solutions

Computer Memory Solutions CM512648500SODRH 8GB (2x4GB) DDR3 1066MHz SO-DIMM for iMac 24" 2.66GHz

SKU CH-Y525-CYVVN

8GB DDR3 1066MHz SO-DIMM kit (2×4GB) for 24-inch iMac 2.66GHz Core 2 Duo

  • Total capacity8 GB (2 × 4 GB)
  • Rated speedDDR3 1066 (PC3 8500)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL7
  • Memory timings7-7-7
  • Rated voltage1.5 V
  • 8GB kit upgrades iMac 24-inch to maximum supported memory
  • 1066 MHz DDR3 matches factory speed for stable operation
  • CL7 timing reduces latency for responsive multitasking
  • 204-pin SO-DIMM form factor fits iMac memory slots exactly
  • 5 V standard voltage ensures compatibility with original specification

Tailored DDR3 SO-DIMM kit for specific iMac

This 8 GB kit contains two 4 GB DDR3 1066 MHz SO-DIMM modules built to the PC3-8500 standard. The 204-pin unbuffered sticks run at 1.5 V with CL7 7-7-7 timings and use a 2Rx8 rank organisation. Computer Memory Solutions validates compatibility with the Apple iMac 24-inch 2.66 GHz Intel Core 2 Duo (MB418LL/A).

Suits owners of the listed iMac.

The kit is engineered for the single model identified in the compatibility data. Builders upgrading a different Mac, a PC laptop or a desktop motherboard should look elsewhere because the firmware and timing profile are matched to that one iMac. Buyers needing ECC, registered modules or a different voltage will not be served by this product.

204-pin DDR3 SO-DIMM form factor decides fit

Only systems that accept 204-pin DDR3 SO-DIMM memory at the PC3-8500 speed grade can use these modules. The physical key notch and electrical signalling are fixed by that standard, so any machine requiring a different pin count, generation or voltage will reject the kit.

How it compares

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

Price $36.99
Cheaper than about 82% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB (2 × 4 GB)
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $4.62 per GB
Cheaper than about 81% 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 nameCM512648500SODRH
Total capacity8 GB (2 × 4 GB)
Product type204-Pin DDR3 SO-DIMM
Performance
Rated speedDDR3 1066 (PC3 8500)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL7
Memory timings7-7-7
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsApple Imac 24 in 2.66 GHz Intel Core 2 Duo (MB418Ll/A
In the box
Included items2 Memory RAM Sticks

Questions about this item

How can I verify the kit is running at the rated 1066 MHz CL7 after installation?

Open System Information on the iMac and confirm each module shows 1066 MHz, PC3-8500 and CAS 7 timing.

What exactly ships in the box and is anything else required to complete the upgrade?

The package contains two 4 GB 204-pin DDR3 SO-DIMM sticks; no extra parts or tools are needed for the iMac 24″ 2.66 GHz.

Which capacity version should I choose for the iMac 24″ 2.66 GHz with two memory slots?

The 8 GB kit (2 × 4 GB) matches the maximum supported memory and fills both sockets.

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