NEC announced the TL620NS, a compact, integrated magnetic tape unit, in September 1998. The TL620NS allowed enterprises to inexpensively automate data backup operations for entry-class server systems. The unit used drives based on Travan NS technology, a server backup standard. And for higher overall reliability, the unit came with a read-while-write function, which permitted data to be read while being written and eliminated writing defects.

Specifications of the TL620NS
Media specifications Travan NS20 mini cartridges
Data transfer speed [MB/s] 1.0  (with uncompressed data)
Max. number of cartridges 6
Max. storage capacity [GB] 60 without compression
120 with compression
Max. storage capacity [GB] 21
Backup time Average time of 15 minutes per GB (with 2x compression)
External dimensions [mm] 170 x 350 x 150 (w x d x h)