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Four green DDR3L SODIMM modules with black chips, 204-pin, 32GB kit

Avarum

Avarum 32GB Kit (4×8GB) DDR3L 1866 SODIMM for iMac 27" Late 2015

SKU CH-AQ88-0N05W

32 GB kit of four 8 GB DDR3L 1866 SO-DIMM modules at 1.35 V and CL13, built for the 27 inch 2015 iMac Retina 5K

  • Type204-Pin DDR3 SO-DIMM
  • Capacity32GB (4 x 8GB)
  • SpeedDDR3L 1866 (PC3L 14900)
  • CAS Latency13
  • Voltage1.35V
  • ECCNo
  • 32 GB total capacity from four 8 GB modules
  • DDR3L 1866 speed with CL13 latency for responsive performance
  • Low 1.35 V voltage reduces power draw and heat
  • 204-pin SO-DIMM form factor fits iMac 27" Late 2015 Retina 5K
  • Dual-rank 2Rx8 organisation supports full memory bandwidth

32GB DDR3L 1866 Kit for iMac

This Avarum kit supplies 32GB of DDR3L 1866 memory in four 8GB SO-DIMM modules. It is built to the 204-pin standard and runs at 1.35V with a CAS latency of 13. The kit is designed specifically for the Apple iMac 27-inch Late 2015 Retina 5K model.

Ideal for iMac 27" Late 2015 owners

This memory suits anyone upgrading that exact iMac to its maximum supported capacity using unbuffered, non-ECC modules. It is not for users of other iMac sizes, other model years, or machines that require ECC or registered DIMMs. Builders working on Windows laptops or desktops should verify their platform accepts DDR3L SO-DIMMs at this speed and voltage before purchasing.

DDR3L 1866 at 1.35V 204-pin SO-DIMM

The decisive specification is the DDR3L 1866 (PC3L 14900) rating on a 204-pin SO-DIMM operating at 1.35V. Only systems that natively support this exact speed, voltage, and form factor will recognise the modules and run them reliably.

Highlights

  • 32 GB total capacity from four 8 GB modules
  • DDR3L 1866 speed with CL13 latency for responsive performance
  • Low 1.35 V voltage reduces power draw and heat
  • 204-pin SO-DIMM form factor fits iMac 27" Late 2015 Retina 5K
  • Dual-rank 2Rx8 organisation supports full memory bandwidth

Specifications

BrandAvarum
ModelAvarum-3L81866-SODIMM-4
Type204-Pin DDR3 SO-DIMM
Capacity32GB (4 x 8GB)
SpeedDDR3L 1866 (PC3L 14900)
CAS Latency13
Voltage1.35V
ECCNo
Buffered/RegisteredUnbuffered
Features2Rx8

Questions about this item

How can I confirm the memory is running at 1866 MHz with CL13 after installation?

Open the System Report in macOS and check the Memory section; each slot should show 8 GB DDR3L at 1866 MHz with a CAS latency of 13.

The kit contains four 8 GB modules — do I need any extra parts or tools to install them?

The box includes only the four 204-pin DDR3L SODIMM modules; you will need a compatible Torx screwdriver to open the iMac memory compartment, which is not supplied.

I see this 32 GB kit listed as 4 × 8 GB — is there a different capacity or speed option for the same iMac model?

This specific kit is the 32 GB (4 × 8 GB) DDR3L 1866 variant; other capacities or speeds would carry a different part number and are not covered by this listing.

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