HP Ultrium tape technology has been designed to deliver exceptional reliability & performance at the lowest cost per GB. The Ultrium format builds on the best of existing technologies; open standards increase innovation & widen customer choice in terms of performance, capacity, & form factor. Backed by HPs exhaustive media qualification process, HP Ultrium data cartridges support all HP Storage Works & non HP Ultrium tape devices. Assuming 2:1 compression, the latest fourth Generation products minimize interruption to network & SAN backup by being capable of protecting 1TB/hour of data & storing up to 3.0 TB on one piece of media (almost double the capacity of HP LTO-4 Ultrium tapes).