Crucial 32GB (2 x 16GB) 204-Pin DDR3 SO-DIMM DDR3L 1600 (PC3L 12800) Laptop Memory Model CT2KIT204864BF160B - Newegg.com
DDR3L SODIMM 32GB 8GB 4GB PC3L-12800 1600 204-Pin Laptop Memory For Crucial LOT | eBay
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OWC 12GB (8GB+4GB) PC3-12800 DDR3L 1600MHz SO-DIMM 204 Pin CL11 Memory Upgrade Kit Compatible with iMac, Mac Mini, and MacBook Pro (OWC1600DDR3S12S) at Amazon.com