SPECIFICATIONS Brand Maxtor Series MaXLine II Model Manufacturer Part Number D33019 Packaging Drive with Carriage Interface ATA / 133 HDD Capacity 320 GB Rotation Speed 5400 RPM Cache Avg. Sequential Read Speed Avg. Sequential Write Speed Form Factor 3.5" ADDITIONAL INFORMATION Distributor Dell Distributor Part Number K4006 Distributor Description HD,320GB,PATA,5.4K,FRU