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Green 204-pin SODIMM module with black chips, no heat spreader

A-Tech

A-Tech 16GB DDR3L 1866MHz 204-Pin SODIMM for iMac 27-inch Late 2015 memory upgrade

SKU CH-8CE5-2YHT9

16 GB DDR3L 1866 MHz SODIMM upgrades the Late-2015 27-inch iMac (iMac17,1) with low-voltage memory

  • Total capacity16 GB
  • Rated speedDDR3L 1866 (PC3L 14900)
  • ChipsetMajor Brand Chipset
  • Rated voltage1.35 V
  • Buffer typeUnbuffered
  • Memory rank2Rx8
  • 16GB single module expands iMac memory capacity
  • DDR3L 1866MHz speed matches Late 2015 iMac specification
  • 204-pin SODIMM form factor fits Apple iMac 27-inch Late 2015
  • 35V low-voltage DDR3L reduces power draw
  • Compatible with Apple model IDs iMac17,1 and EMC 2834

Target system

This 16 GB DDR3L SODIMM is built for the 27-inch iMac from Late 2015 (model iMac17,1, order numbers MK462LL/A, MK472LL/A, MK482LL/A, EMC 2834). It installs as a single 204-pin module running at 1866/1867 MHz PC3-14900 and 1.35 V.

Who it suits

Owners of the compatible iMac wanting a straightforward capacity increase to 16 GB in one slot will find this module a direct fit. Builders working on any other Mac, PC laptop, or desktop that does not match the listed model IDs and order numbers should look elsewhere.

Deciding spec

The module is a single 16 GB DDR3L 204-pin SODIMM rated at 1866/1867 MHz PC3-14900; if your system requires a different form factor, speed, voltage or maximum per-slot capacity, this part will not work.

How it compares

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

Price $184.99
Cheaper than about 59% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $11.56 per GB
Pricier than about 56% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameA-Tech
Product lineA-Tech DDR3 Apple Mac RAM Memory Upgrades
Total capacity16 GB
Performance
Rated speedDDR3L 1866 (PC3L 14900)
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

Does this 16GB DDR3L 1866MHz SODIMM work in the iMac 27-inch Late 2015 without any other memory installed?

Yes, this single 16GB module is designed for the iMac 27-inch Late 2015 and fits the 204-pin DDR3L slot, so the system will boot with only this module installed.

Can I pair this 1866MHz module with the original DDR3L memory that came in my iMac 27-inch Late 2015?

The iMac 27-inch Late 2015 uses DDR3L 1867MHz memory, so this 1866/1867MHz module matches the factory speed and will run alongside the original modules without downclocking.

How can I confirm the iMac 27-inch Late 2015 recognises the full 16GB after installing this SODIMM?

Open About This Mac or System Report; the Memory section should show a 16GB DDR3L 1867MHz module in one of the two SO-DIMM slots.

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