This HP H6Y77AA#ABA compatible 8GB DDR3-1600MHz dual rank Unbuffered 1.35V 204-pin CL11 SODIMM is 100% guaranteed to be compatible with your system and to work right the first time. Adding additional memory is the best way to increase the performance of your system. All our memory is built to strict JEDEC standards to meet or exceed the Tier 1 OEM's factory requirements. Our products are also guaranteed by the Magnuson-Moss Warranty Act to not affect or void OEM warranties.

• 8 GB of memory to heighten your computer's performance
• 204-pin-pin DDR3 SDRAM interface synchronizes electrical and clock signals for an efficient data transfer rate
• Up to 1600 MHz speed with CL11 latency for smooth computer performance