AddOn 4GB Industry Standard DDR2-800MHz UDIMM Kit - DDR2 - 4 GB: 2 x 2 GB - DIMM 240-pin

This Industry Standard 4GB (2x2GB) DDR2-800MHz Dual Rank Unbuffered 1.8V 240-pin CL5 UDIMM kit 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.