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Two green SO-DIMM sticks with black chips side by side

Computer Memory Solutions

Computer Memory Solutions CM5126410600SODRH 8GB (2x4GB) DDR3 1333MHz CL7 1.5V 204-pin SO-DIMM memory upgrade

SKU CH-ZTBE-RBJ51

Dual 4 GB DDR3 1333 MHz SO-DIMM kit validated for the 27-inch mid-2010 iMac Core i3 3.2 GHz

  • Total capacity8 GB (2 × 4 GB)
  • Rated speedDDR3 1333 (PC3 10600)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL7
  • Memory timings7-7-7
  • Rated voltage1.5 V
  • 8 GB total capacity from two 4 GB modules
  • DDR3 1333 MHz CL7 timing for responsive performance
  • 5 V unbuffered SO-DIMM matches original iMac specification
  • 204-pin form factor fits the four Mid-2010 iMac slots
  • Guaranteed compatible with iMac Core i3 3.2 27-Inch MC510LL/A

8 GB DDR3 SO-DIMM kit for Mid-2010 iMac

This 8 GB kit contains two 4 GB DDR3 1333 MHz modules built to the PC3-10600 standard. They use 204-pin SO-DIMM form factor, run at 1.5 V with CL7 timings and are unbuffered non-ECC. The kit is specified for the Apple iMac "Core i3" 3.2 27-Inch (Mid-2010) MC510LL/A.

Suits owners of that exact iMac model wanting

The iMac ships with 4 GB across two slots and has four sockets total. This kit occupies the two free slots and raises the total to 12 GB. It will not help builders working on other platforms, laptops needing different speeds or voltages, or anyone needing ECC or registered memory.

Fits the two vacant SO-DIMM sockets inside

Installation requires access to the memory compartment behind the lower edge of the display. No heat spreaders are fitted, so standard clearance applies. The upgrade leaves the original pair in place and uses the remaining capacity headroom.

How it compares

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

Price $35.99
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 $4.50 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 nameCM5126410600SODRH
Total capacity8 GB (2 × 4 GB)
Product type204-Pin DDR3 SO-DIMM
Performance
Rated speedDDR3 1333 (PC3 10600)
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 "Core I3 in 3.2 27 in (Mid-2010) Mc510Ll/A
In the box
Included items2 Memory RAM Sticks

Questions about this item

Does my iMac need four empty SO-DIMM slots to use this 2×4 GB kit?

The Mid-2010 27-inch iMac has four slots; two are occupied by the factory 2×2 GB modules, so the two free slots accept this kit directly.

Will these CL7 modules run at CL7 alongside the original CL9 memory?

The system operates all modules at the slowest common timing, so the original CL9 sticks set the pace and the CL7 kit will run at CL9.

How can I confirm the kit is recognised at 1333 MHz after installation?

Open About This Mac → Memory; it should show 8 GB total (4 GB + 4 GB) at 1333 MHz DDR3.

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