HP H6Y77UT#ABA COMP 8GB DDR3-1600MHZ 1.35V DR SODIMMAddOn 8GB DDR3 SDRAM Memory Module For Notebook 8 GB (1 x 8GB) DDR3 1600 PC3 12800 DDR3 SDRAM 1600 MHz Dual rank Memory CL11 1. 35 V Non ECC Unbuffered 204 pin SoDIMM Lifetime Warranty VPN: H6Y77UT#ABA AA SKU: RSC932420 UPC: 821455234136 8 GB bar will run multiple applications together and enhance your computer's performance SoDIMM 8 GB capacity is enough to execute all memory hungry programs simultaneously 1600 MHz of memory speed with Unbuffered