Perfect working condition, pulled from working server for upgrade. Lifetime Warranty from Crucial!!!

Crucial Technology CT51272AF80E 4 GB 240-pin DIMM  DDR2 PC2-6400 CL=5 Fully Buffered ECC DDR2-800 1.8V 512Meg x 72 Memory

Compatible - 398708-061 HP 4GB PC2-5300F 1 x 4GB Memory Kits DL380 DL360 G5

(Pairs pictured, sold as a single DIMM, select higher quantity as needed.)