Portable Disk Units GNT 7102 NC Data Drive Portable full DOS-compatible 3 ½ " diskette station. Disk format 2DD 720 KB and 2HD 1.44 MB. Transmission speed 110-19200 baud. RS232C serial interface with current loop. Possibility for rack or "flexible" mounting. Contains Mazak and Fapt protocols. Battery pack. available as option.   Introducing the new GNT 7102 USB The GNT 7102 drive has now been upgraded to USB drive so you can use standard USB memory media which allows upto 100 folders per memory stick. Existing floppy 7102 units can be upgraded to USB drive. Please ring for current prices and upgrade prices. Further details can be obtained by downloading the PDF file here.