The Dell PowerVault 130T is the Dell OEM version of the StorageTek TimberWolf . It delivers exceptional capacity and throughtput - ideal for fast, frequent backups of large networks, servers, VLDB's and data warehouses. StorageTek is the leading supplier of Enterprise class tape libraries (48% market share!) to customers worldwide, since the early 70's. Holds up to 4 Quantum DLT7000 Tape Drives Holds up to 30 DLT Cartridges Total Capacity= 2.1TB (2100 GBytes!) Unique Front Panel Controls and LCD Display Innovative Advanced Rotational Robotics is faster than linear systems Sophisticated Vision System- moves tape faster and more efficiently Rack mount SCSI-2 Interface Broad Software Compatibility Two DLT7000's- expandable to 4 DLT7000's Extremely Reliable SPECIFICATIONS Max Capacity 2.1 TB (2:1 compression) Native Capacity 1.1 TB Max Performance (4 DLT7000) 40 MB/sec Backup Rate (4 DLT7000) 144 GB/hour Average Cartridge Access 6 Seconds Recording Format DLT 4 Interface SCSI-2, Fast/Wide Physical Interface 68 pin MTBF 1,000,000 hours Dimensions (W x H x D) 19.0 x 17.5" x 28.6" Weight 110 lbs. Input Power 100/240 VAC, 50/60Hz This one has two DLT 7000's installed! Up to 2 more may be added.