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Four green DDR3 SO-DIMM sticks with black chips

Computer Memory Solutions

Computer Memory Solutions CM5126410600SODRH 16GB (4x4GB) DDR3 1333MHz memory upgrade

SKU CH-CYG8-NNQ99

16 GB DDR3 1333 MHz SO-DIMM kit of four 4 GB modules for the mid-2010 21.5-inch iMac Core i3 3.2 GHz

  • Total capacity16 GB (4 × 4 GB)
  • Rated speedDDR3 1333 (PC3 10600)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL7
  • Memory timings7-7-7
  • Rated voltage1.5 V
  • 16 GB total capacity across four 4 GB modules
  • DDR3 1333 MHz speed with CL7 latency for responsive performance
  • 5 V unbuffered non-ECC SO-DIMM design matches original specs
  • 204-pin form factor fits the iMac 21.5-inch Mid-2010 memory slots
  • Guaranteed compatibility with Apple iMac Core i3 3.2 21.5-inch Mid-2010

Compatible 204-Pin DDR3 SO-DIMM Kit

This 16GB kit contains four 4GB modules built to the PC3-10600 1333MHz standard with CL7 timing and 1.5V operation. The unbuffered, non-ECC SO-DIMMs use a 2Rx8 rank configuration and major-brand chips without heat spreaders. Computer Memory Solutions guarantees compatibility with the listed Apple iMac model.

Suits owners of the specified Mid-2010 iMac

The memory is validated for the 21.5-inch Core i3 3.2GHz iMac identified as MC509LL/A, iMac11,2 and A1311. Systems that require ECC, registered modules, a different pin count, another DDR generation or a higher maximum capacity cannot use this kit.

Four-Slot 16GB Maximum Configuration

The target iMac provides four SO-DIMM sockets and supports a total of 16GB, so this 4x4GB kit fills every slot exactly. Buyers whose machine has fewer slots or a lower per-slot limit should look elsewhere.

How it compares

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

Price $77.99
Cheaper than about 71% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB (4 × 4 GB)
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $4.87 per GB
Cheaper than about 78% 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 capacity16 GB (4 × 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 21.5 in (Mid-2010)
In the box
Included items4 Memory RAM Sticks

Questions about this item

How do I confirm the 16GB (4x4GB) DDR3 1333MHz kit is running correctly after installing it in my Mid-2010 iMac?

Open About This Mac and verify the total memory reads 16GB at 1333MHz DDR3 across all four slots.

What comes in the box and is anything else needed for the iMac installation?

The package contains four 4GB 204-pin DDR3 SO-DIMM modules; no extra parts or tools are required for the compatible iMac.

Which capacity version should I choose for the Mid-2010 21.5-inch iMac with four memory slots?

This 16GB (4x4GB) kit fills all four slots and matches the maximum supported memory for that model.

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