Native Capacity: 800GB Buffer: 128MB Native Sustained Transfer Rate: 80 MB/s Compressed Sustained Transfer Rate: 160 MB/s Average Access Time: 64s Recording Format: LTO Ultrium 4 LTO Ultrium 3 (for 400 GB tape) MTBF: 250,000 hours at 100% duty cycle Dimensions: 11.7" x 8.8" x 3"