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Green circuit board with black memory chips and gold edge connector

A-Tech

A-Tech 8GB DDR3 1866MHz SODIMM 204-Pin memory upgrade for iMac Late 2015

SKU CH-PDMB-PF0GK

An 8 GB DDR3L 1866 MHz SODIMM module built for the 27‑inch iMac (Late 2015)

  • Capacity8GB
  • SpeedDDR3L 1866 (PC3L 14900)
  • Voltage1.35V
  • ECCNo
  • Buffered/RegisteredUnbuffered
  • Rank2Rx8
  • 8GB capacity adds multitasking headroom for iMac Late 2015
  • DDR3L 1866MHz speed matches factory memory specification
  • 35V low voltage reduces power draw and heat
  • 204-pin SODIMM form factor fits the iMac memory slot
  • Tested with major-brand chips for reliable operation

8 GB DDR3L 1866 SODIMM for iMac Late 2015

This A-Tech module adds 8 GB of DDR3L memory to a compatible iMac. It runs at 1866 MHz with a low 1.35 V voltage and uses a 204-pin SO-DIMM form factor. The kit contains a single unbuffered 2Rx8 stick built with major-brand chips. It is designed specifically for the iMac17,1 platform.

Suits Late 2015 27-inch Retina iMac owners.

The part matches Apple model IDs iMac17,1 and order numbers MK462LL/A, MK472LL/A and MK482LL/A. It fits the 27-inch Retina 5K iMac from Late 2015 (A1419, EMC 2834). Builders upgrading a different iMac year, a MacBook, a Mac mini or any non-Apple system should look elsewhere.

204-pin DDR3L SO-DIMM at 1.35 V decides fit

The module uses the DDR3L 1866 standard (PC3L-14900) in a 204-pin SO-DIMM package at 1.35 V. Only systems that accept this exact voltage, pin count and DDR3L signalling will recognise the memory. Verifying the iMac model identifier iMac17,1 before purchase confirms compatibility.

商品特色

  • 8GB capacity adds multitasking headroom for iMac Late 2015
  • DDR3L 1866MHz speed matches factory memory specification
  • 35V low voltage reduces power draw and heat
  • 204-pin SODIMM form factor fits the iMac memory slot
  • Tested with major-brand chips for reliable operation

商品規格

BrandA-Tech
SeriesA-Tech DDR3 Apple Mac RAM Memory Upgrades
Capacity8GB
SpeedDDR3L 1866 (PC3L 14900)
Voltage1.35V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemApple Mac Systems
FeaturesMajor Brand Chips

商品問答

Does the iMac (Retina 5K, 27-inch, Late 2015) need a free SO-DIMM slot for this 204-pin module?

Yes, the iMac17,1 has four SO-DIMM slots; at least one must be empty to install this single 8 GB DDR3L 1866 MHz stick.

Will this DDR3L 1.35 V module run stably alongside the factory 1.5 V DDR3 sticks already in my iMac?

The memory controller in the Late 2015 iMac operates all slots at 1.35 V, so the new module and any original DDR3 sticks will share the same voltage without issue.

How can I confirm the module is recognised at 1867 MHz after installation?

Open About This Mac → System Report → Memory; the new entry should show 8 GB, DDR3, 1867 MHz, 2Rx8 rank for the installed slot.

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