TransIntl has the Swiftdata 200, a Terabyte of Internal Storage for the Power Mac G5

The Power Macintosh G5 comes with one SATA drive, and an open bay to install one more drive. With Swiftdata 200 solution it is possible to add three more drives to this computer. A total of five Hard Drives can be mounted in the computer. These drives can be used as RAID Type 0 for archival backup and security, a Type 1 RAID for blinding speed (more than fast enough to capture 10 bit uncompressed video from your non-linear editing system), or as individual drives where large storage space is required, but the demand for speed is lessened. It can give up to 50mb/s data transfer per channel or 200mb/s as RAID. Trans International's SWIFTDATA 200 SATA internal storage solution takes Power Mac G5 to a new level of excellence.