Designed for effective storage solutions, the 146.8 GB HP Compaq Proliant drive is an internal hard disk drive used in enterprise servers / storage units. The Ultra 320 MB/s SCSI interface enables high-speed data transfer, making the HP internal HDD suitable for businesses with substantial storage, backup, and archiving demands. Since the Ultra 320 SCSI drive has a 3.5-inch form factor, the HP internal HDD can also be used for a desktop computer. During drive failures, hot-plugging support in the Ultra 320 SCSI drive enables you to replace the malfunctioning drive without having to shut down the server, thereby improving performance of the 146.8 GB HP Compaq Proliant drive.