Full Details on Amazon.com : http://www.amazon.com/gp/product/B00303139G?tag=tsukuyomi-20
4GB Memory RAM for HP EliteBook 6930p 200pin PC2-6400 800MHz DDR2 SO-DIMM Memory Module Upgrade
Brand new certified 200pin PC2-6400 800MHz DDR2 SO-DIMM Black Diamond Memory
Low density 4GB memory single stick memory module
100 compatible garrantee for HP EliteBook 6930p
100 pre-tested on HP system to ensure functionality
Lifetime warranty