Here is the info from the Dell site:
No controller (Cheapest at $199) with linux software it is $299
PowerVault 100T TR-5 An economical tape backup drive designed to be cost-effective and deliver backup capacities up to 20GB1 with throughputs up to 1 MB/sec. Travan tape drives use IDE controllers to provide backup solutions for PowerEdge SC servers. PowerVault Travan drives can be purchased with optional Yosemite TapewareTM , Tape Backup Software which provides data compression, disaster recovery and simplified backup scheduling
with controller (expensive at $699)
PowerVault 110T DLT VS80 Based on Digital Linear Tape (DLT) technology, the DLT VS80 tape drive is a half-high, reliable tape drive delivering up to 80GB1 of capacity at up to 6MB/sec1. The DLT VS80 tape drive is ideal for rack-dense PowerEdge server backup.