HEWLETT-PACKARD 8 GB (1 x 8 GB) - DDR3 SDRAM - 1600 MHz DDR3-1600/PC3-12800 - 1.4 V - Non-ECC - Unbuffered - 204-pin - SoDIMM / H6Y77UT#ABA / by HP MPN: H6Y77UT#ABA