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Two green rectangular SODIMM modules with gold edge connectors lying side by side

Computer Memory Solutions

Computer Memory Solutions 8GB (2x4GB) DDR3L 1600MHz SODIMM for iMac 27-Inch 2014

SKU CH-5PT7-SMG86

8GB DDR3L 1600MHz SODIMM kit for 27-inch 2014 iMac with Retina 5K display

  • Total capacity8 GB (2 × 4 GB)
  • Rated speedDDR3L 1600 (PC3L 12800)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL11
  • Memory timings11-11-11
  • Rated voltage1.35 V
  • 8GB dual-channel kit boosts multitasking on 2014 iMac 27-Inch
  • 1600MHz DDR3L speed matches factory specification for reliable performance
  • 35V low-voltage modules reduce power draw and heat output
  • CL11 11-11-11 timings deliver responsive latency for everyday workloads
  • 204-pin SODIMM form factor fits the four memory slots in iMac15,1

Targeted upgrade for 2014 iMac 27-Inch

This 8 GB kit uses two 4 GB DDR3L SODIMM modules built for the Apple iMac "Core i7" 4.0 27-Inch Retina 5K 2014 model. It suits owners who want to add memory to a compatible four-slot system without exceeding the 32 GB maximum. The unbuffered, non-ECC design matches the factory specification for this all-in-one desktop.

Replaces lower-capacity factory modules

The kit upgrades from the original 4 GB or 8 GB configurations that shipped with the 2014 iMac. The jump is worth it when macOS, creative applications or virtual machines regularly push the system into memory pressure. Each module runs at 1600 MHz with CL11 timing at 1.35 V, matching the DDR3L PC3L 12800 standard the platform requires.

Straightforward user installation

The 204-pin SODIMM format fits the iMac's accessible memory door; no tools beyond a soft cloth and static precautions are needed. Install the pair in matching slots for dual-channel operation. The main risk is mixing these DDR3L sticks with older 1.5 V DDR3 modules, which can prevent boot or cause instability. Verify the late-2014 model identifier iMac15,1 before ordering.

How it compares

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

Price $22.99
Cheaper than about 89% 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 $2.87 per GB
Cheaper than about 90% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM5126412800SODRL
Total capacity8 GB (2 × 4 GB)
Product type204-Pin DDR3 SO-DIMM
Performance
Rated speedDDR3L 1600 (PC3L 12800)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL11
Memory timings11-11-11
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.35 V
Compatibility
Compatible systemsApple iMac "Core i7 in 4.0 27 in (Retina 5K, 2014)
In the box
Included items2 Memory RAM Sticks

Questions about this item

Will these 204-pin DDR3L SODIMM modules fit the four memory slots in my 27-inch 2014 iMac?

Yes, the kit contains two 4 GB sticks that match the 204-pin SODIMM form factor used by the 2014 Retina 5K iMac, which has four slots supporting up to 32 GB total.

What is the correct order for installing the two sticks so the iMac recognises the full 8 GB?

Power off and unplug the iMac, lay it face-down on a soft cloth, remove the memory access door, eject any existing modules, then insert both new sticks firmly until they click into the two lowest slots.

How can I tell later if one of the modules has failed and needs replacing?

Run Apple Diagnostics by holding the D key at startup; a memory error code indicates a faulty stick, and because the kit is unbuffered non-ECC CL11 DDR3L 1600 MHz you simply swap the bad module for an identical 4 GB SODIMM.

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