"The NSM7000 delivers fast access to over 6TB of data. Up to 14 drives can be installed to provide high performance multiuser access to data. The NSM7000 offers DISC's highest capacity in a small footprint.* The NSM7000U Series models allow users to increase storage capacity using the existing chassis. Modular design architecture allows for scaleable drive and media slot counts, giving users a maximum of 6.48 TB of capacity.Basics, Number of media slots** 510 to 705 , Number of drives 1 to 14 ,Capacity max 6.48 TB.Media exchange time 6 sec. average Intelligent Pack Technology 4 removable packs, CapacityDoublerTM Optional SYSTEM,Data interface Single/dual LVD-SCSI, Fibre Channel optional, Robotics control interface RS232/LVD switchable. DRIVES, Recorder Drive Multi-Drive Data Transfer Rates DVD-R 8X: 11 MB/s, DVD-RAM 3X:4.1MB/s, CD-R 24X:3.6 MB/s , Access time 110 ms .Reader Drive DVD-ROM/R 9.0-22MB/s, Data Transfer Rates CD-ROM/R 8.2 MB/s. Access time 120 ms "