This HP® 577606-001 compatible 4GB DDR3-1066MHz Dual Rank Unbuffered 1.5V 204-pin CL7 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 federal law to not affect or void OEM warranties.
- 4 GB memory allows you to have more programs open at a time
- DDR3 SDRAM interface synchronizes electrical and clock signals for an efficient data transfer rate
- 1066 MHz of memory speed makes your computer great at multitasking
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