Dell 8GB DDR3L-1600 PC3L-12800 240-Pin Non-ECC Unbuffered 2Rx8 1.35volt P/N SNPVR648C/8G 8GB DDR3L SDRAM - DIMM 240-pin 1600 MHz (PC3L-12800) Non-ECC Unbuffered Dual rank, Low Voltage 1.35 V