HP Storage Works LTO-4 Ultrium 1840 Tape Drive represents HPs fourth-generation of LTO tape drive technology positioned as HPs first tape drive capable of storing up to 1.6 TB per cartridge while providing hardware-based encryption to enable greater levels of security & unprecedented performance. The Ultrium 1840 provides investment protection with full read & write support with LTO-3 media, & the ability to read LTO-2 cartridge. By doubling the capacity of previous generation Ultrium drives, HP customers now require fewer data cartridges to meet their storage needs, significantly reducing IT costs & increasing ROI.