New SO DIMM DDR3L Memory RAM 1600MHz (PC3L 12800) 1.35V for Lenovo IdeaPad Flex 14 (59xx) Flex 14 (80C4) Flex 14D (59xx)|RAMs| - AliExpress
8GB DDR3L PC 12800 1600MHz ECC/REG Server Memory Model M393B1G73EB0-YK0 at Amazon.com
OWC 4GB PC12800 DDR3L 1600MHz SO-DIMM Memory Compatible with 2011-2015 iMac, 2011-12 Mac Mini, and 2011-2012 MacBook Pro (Non-Retina Display) Models (OWC1600DDR3S4GB) at Amazon.com
OWC 32GB (4 x 8GB) PC12800 DDR3L 1600MHz SO-DIMMs Memory Compatible with 2011-2015 iMac Models (OWC1600DDR3S32S) at Amazon.com