We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Four green circuit boards with black chips and gold edge connectors

A-Tech

A-Tech 16GB (4x4GB) DDR3 1600MHz SODIMM 204-Pin Memory Upgrade

SKU CH-6FRJ-EW7FG

A 16 GB DDR3L 1600 MHz SODIMM kit for 27-inch iMac models from late 2012 through mid 2015

  • Total capacity16 GB (4 × 4 GB)
  • Rated speedDDR3L 1600 (PC3L 12800)
  • ChipsetMajor Brand Chipset
  • Rated voltage1.35 V
  • Buffer typeUnbuffered
  • Memory rank2Rx8
  • 16GB kit expands multitasking headroom for demanding workloads
  • DDR3L 1600MHz speed matches factory specifications exactly
  • 35V low-voltage modules reduce power draw and heat
  • Four 204-pin SODIMMs fill all slots on compatible iMacs
  • Validated for iMac 27-inch Late 2012 through Mid 2015

Apple iMac 27-inch RAM kit

This 16 GB kit contains four 4 GB DDR3L SODIMM modules that run at 1600 MHz and operate at 1.35 V. It is built specifically for the 27-inch iMac models released in late 2012, late 2013, late 2014 and mid 2015.

Capacity and headroom

The 16 GB total fills all four slots on the supported iMacs, giving the maximum memory those systems accept. It handles everyday multitasking and creative workloads comfortably, but the platform cannot be expanded beyond this limit.

Unbuffered non-ECC design

The modules use major-brand chips in a 2Rx8 unbuffered layout without error-correcting code. This matches the factory memory specification so the Mac recognises the upgrade immediately without firmware changes.

How it compares

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

Price $53.99
Cheaper than about 77% 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 $3.37 per GB
Cheaper than about 88% 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 nameA-Tech
Product lineA-Tech DDR3 Apple Mac RAM Memory Upgrades
Total capacity16 GB (4 × 4 GB)
Performance
Rated speedDDR3L 1600 (PC3L 12800)
Processor
ChipsetMajor Brand Chipset
Memory
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.35 V
Compatibility
Compatible systemsApple Mac Systems

Questions about this item

Will this 1.35 V DDR3L kit run without issues in my Late 2012 iMac that originally shipped with 1.5 V DDR3 modules?

Yes — the DDR3L modules operate at 1.35 V and are backward-compatible with the 1.5 V slots used in the Late 2012 27-inch iMac (iMac13,2).

How can I verify the full 16 GB is recognised after installing the four 4 GB sticks?

Open About This Mac — it should show 16 GB DDR3 1600 MHz; System Report will list four 4 GB SODIMMs at 204-pin, 2Rx8 rank.

Does the package contain only the four SODIMM modules or are tools and guides included?

The box holds the four 4 GB DDR3L 1600 MHz SODIMM modules; no screwdrivers, spudgers or printed manuals are supplied.

More in Model-Specific Memory Upgrades

Similar items