These disk drives give the systems exceptional performance and storage while supporting industry-standard interface speeds of up to 160 Mbps Ultra3 SCSI. All drives support the Fast/Wide SCSI speeds of 20, 40, and 80 Mbps.The higher SCSI bus data rate along with the 10, 000 rpm spinning speed of the disk platters can greatly improve a system's overall data throughput. These disk drives are a 3.5-inch diameter, 1-inch (25-mm) high form factor, which allows them to be placed in dense system configurations.