8GB (4GB x 2pcs)
16GB (8Gb x 2pcs)
32GB (8GB x 4pcs)
OWC PC3-12800 DDR3L 1600MHz SO-DIMM 204 Pin CL11 SO-DIMM Memory Upgrade Kit for Late 2013/2014 and early 2015 and Retina 5K iMac 27-inch models.
FREE shipping to Malaysia, Brunei, Thailand, Hong Kong, Macau, Taiwan, Philippines, Vietnam, Myanmar, South Korea, Australia, New Zealand.Warranty: Memory comes with Lifetime warranty.