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Two green circuit boards with gold edge connectors and black memory chips

Computer Memory Solutions

Computer Memory Solutions CM2566410600SODRH 4GB (2x2GB) DDR3 1333MHz CL7 1.5V 204-Pin SO-DIMM memory upgrade

SKU CH-BXFB-ZKATC

4 GB kit of two 2 GB DDR3 1333 MHz CL7 SO-DIMMs for the 27-inch iMac (Mid-2010)

  • Total capacity4 GB (2 × 2 GB)
  • Rated speedDDR3 1333 (PC3 10600)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL7
  • Memory timings7-7-7
  • Rated voltage1.5 V
  • 4GB kit (2×2GB) expands iMac memory to 16GB max
  • DDR3 1333MHz CL7 timing speeds up data access
  • 5V unbuffered SO-DIMM matches Apple mid-2010 spec
  • 204-pin form factor fits both free slots directly
  • Major-brand chips with lifetime warranty ensure reliability

4GB DDR3 SO-DIMM kit for 27-inch iMac

This 4GB kit contains two 2GB DDR3 1333MHz SO-DIMM modules built to PC3-10600 specification. It is designed as a direct memory upgrade for the Apple iMac "Core i3" 3.2 27-Inch (Mid-2010) model MC510LL/A. The modules are unbuffered, non-ECC and operate at 1.5V with CL7 7-7-7 timings.

Check your iMac model and free slots

Verify that your system is the exact 27-inch iMac from Mid-2010 identified as MC510LL/A or iMac11,3 before ordering. The computer ships with 4GB installed across two of its four SO-DIMM sockets, leaving two slots open for this kit. Confirm the existing modules are removable and that the firmware supports the total capacity after installation.

Two matched modules simplify installation

The package supplies two identical 204-pin sticks so both free slots can be populated at once for dual-channel operation. No heat spreaders are fitted, keeping the low-profile form factor required by the slim iMac chassis. The kit is covered by a limited lifetime warranty from the manufacturer when purchased directly.

How it compares

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

Price $13.99
Cheaper than about 94% 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 $3.50 per GB
Cheaper than about 87% 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 nameCM2566410600SODRH
Total capacity4 GB (2 × 2 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 the kit contain only the two 2 GB SO-DIMMs or are tools and thermal pads included?

The package contains exactly two 204-pin DDR3 SO-DIMM modules rated at 1333 MHz CL7 1.5 V. No tools, thermal pads or other accessories are supplied.

My iMac has four slots with two already occupied — should I buy this 2×2 GB kit or a single 4 GB module?

This 2×2 GB kit fills the two free slots and keeps the original pair in place, giving 8 GB total. A single 4 GB stick would leave one slot empty and also total 8 GB, so either approach works.

The headline says 1333 MHz CL7 — will the Mac actually run at that speed and latency?

Yes. The iMac’s memory controller is specified for 1333 MHz DDR3, so the modules operate at their rated 1333 MHz with 7-7-7 timings at 1.5 V.

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