Wishlist Quick view WESTERN DIGITAL WESTERN DIGITAL WD4000AAJB 400gb-7200rpm Ata - ide Hard drives $224.61 $154.90 WESTERN DIGITAL - CAVIAR SE 400GB 7200RPM ATA/100 (ATA-6) 8MB BUFFER 3.5INCH INTERNAL HARD DISK DRIVE (WD4000AAJB). REFURBISHED. CALL. Compare Add to Cart Add to Wishlist