Adamanta 32GB (4x8GB) Apple Memory Upgrade for Late 2015 iMac 27" DDR3L 1867Mhz PC3L-14900 SODIMM 2Rx8 CL13 1.35v RAM Compatible with: MK462LL/A, MK482LL/A, MK472LL/A, refurbished, and all built to order late 2015 iMacs. 32GB ( 4x8GB ) DDR3L 1867 Mhz Late 2015 iMac Unbuffered Non-Parity SDRAM 204pin Low Voltage Dual Rank Module. Works with all iMacs with Skylake Processors. This module works for 27" late 2015 iMac's of every spec. Every module is backed by a limited lifetime warranty. We always have hundreds in stock! Free technical support from our Apple Expert technicians. Every single module is fully tested by the manufacturer. Our experienced technicians can verify if these parts will work for you.