HP A3351-69001 - 2.0GB Differential Fast Wide SCSI-2 hard drive - 3.5-inch form factor, low profile (Seagate) Retail
HP A3350-69001 - 1.0GB Differential Fast Wide SCSI-2 hard drive - 5,400 RPM, 3.5-inch form factor, low profile Retail
HP A3351-69004 - 2.0GB Differential Fast Wide SCSI-2 hard drive - 3.5-inch form factor, low profile (Quantum) Retail