AddOn 1GB Industry Standard DDR2-533MHz UDIMM - DDR2 - 1 GB - DIMM 240-pin - unbuffered

This Industry Standard 1GB DDR2-533MHz Dual Rank Unbuffered 1.8V 240-pin CL4 UDIMM 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 memory is built to strict JEDEC standards to meet or exceed the Tier 1 OEM's factory requirements. The products are also guaranteed by federal law to not affect or void OEM warranties.