Patriot Signature Line 8GB DDR2 800 PC2 6400 Memory Module PSD28G800K PC2-6400 (800MHz) Data Rate 240-Pin Dual in-line memory module 7.8US Refresh Interval (8192 Cycles/64MS) 1.8V Power Requirement Auto and self refresh capability 100% Tested RoHS Compliant Lifetime Warranty