HP A6518-69001 - 36.4GB hot-swap SCSI hard drive module - 10,000 RPM, low profile - NOTE: This Drive Requires High Speed Fans - (A6518A) Retail
HP A6537-69230 - 18GB hot-swap Ultra160 Low Voltage Differential (LVD) SCSI hard drive module - 10,000 RPM, low profile Retail
HP A6539-69002 - 73GB hot-swap Ultra160 Low Voltage Differential (LVD) SCSI hard drive module - 10,000 RPM, low profile Retail
HP A6537-69003 - 18GB hot-swap Ultra160 Low Voltage Differential (LVD) SCSI hard drive module - 10,000 RPM, low profile Retail
HP A6540-69230 - 18GB hot-swap Ultra160 Low Voltage Differential (LVD) SCSI hard drive module - 15,000 RPM, low profile Retail