Hard Disk         Notebook Hard Disk   SKU Number Capacity Interface Access Time RPM Buffer HDWD400UE 40GB PATA 100 12ms 5400 2MB HDWD800UE 80GB PATA 100 12ms 5400 2MB HDWD1600BEVS 80GB SATA 150 12ms 5400 8MB HDWD800BEVE 80GB PATA 100 12ms 5400 8MB HDWD800BEVS 80GB SATA 150 12ms 5400 8MB HDWD1200BEVE 120GB PATA 100 12ms 5400 8MB HDWD1200BEVS 120GB SATA 150 12ms 5400 8MB HDWD1600BEVE 160GB PATA 100 12ms 5400 8MB HDWD2500BEVS 250GB SATA 150 12ms 5400 8MB HDWD2500BEVE 250GB PATA 100 12ms 5400 8MB       IDE / SATA Hard Disk   WD produces the world's most reliable IDE/SATA drives. Designed and manufactured to enterprise reliability standards, these drives offer the best combination of reliability, high capacity and performance for high duty cycle enterprise applications.       SKU Number Capacity Interface Access Time RPM Buffer HDWD400BB 40GB PATA 100 8.9ms 7200 2MB HDWD400JB 40GB PATA 100 8.9ms 7200 8MB HDWD800BB 80GB PATA 100 8.9ms 7200 2MB HDWD800BB/R 80GB PATA 100 8.9ms 7200 2MB HDWD800JB 80GB PATA 100 8.9ms 7200 8MB HDWD800JD 80GB SATA 150 8.9ms 7200 8MB WD800AAJS 80GB SATA 300 8.9ms 7200 8MB HDWD800BEVE 80GB PATA 100 8.9MS 5400 8MB HDWD1200BB 120GB PATA 100 8.9ms 7200 2MB