Product Numbers: 397415-B21
Product description: HP 8GB (2x4GB) FBD PC2-5300 (2x4GB) SDRAM DDR2 Dual Rank Memory Kit Option Part# 397415-B21 (2 modules per Kit) Spare Part# 416473-001 (2 modules per Kit) Assembly Part# 398708-061 (2 modules per Kit)