RAMAXEL 1rx8 1.35v Pc3l-12800s-11-13-B4 Hf Rmt3170mn68f9f-1600 4GB Laptop Ram Memory (RMT3170MN68F9F-1600) ramaxel 4gb laptop ram memory 1rx8 1.35v pc3l-12800s-11-13-b4 hf rmt3170mn68f9f-1600. low voltage.