Reviews Dell ST3500630NS Seagate 3.5 inch 500GB 7200RPM SATA Raid Edition Hard DriveWith so many available right now, it is good to have a brand you can recognise. The Dell ST3500630NS Seagate 3.5 inch 500GB 7200RPM SATA Raid Edition Hard Drive is certainly that and will be a great purchase. For this reduced price, the Dell ST3500630NS Seagate 3.5 inch 500GB 7200RPM SATA Raid Edition Hard Drive comes widely recommended and is always a regular choice amongst most people.