Check the listing for details. EXFO FTB-400 & FTB-7300x OTDR UPGRADED!!!. Condition: Used. Listed at 3149.10 USD. Optoelectronics Refurbish is happy to present you with the following device: EXFO FTB-400 & FTB-7300x OTDR (x means one of the many units that I have, see my other listing). Perfect working condition. OTDR module to be used in the 4 module mainframe that takes 2 batteries total or external power supply. New batteries and external charger included. USB keyboard and mouse, as well as Toolbox 6 cd and Toolbox desktop CD included. Paper manuals too, if you want them. Upgraded OS and extra memory. Including wireless internet access or wireless data transfer, Bluetooth possible too. In case of doubt, or if needed additional assistance, please email us to google at OptoElectronicsRefurbish. Consult with us about it, check other items listed. Purchase Orders accepted and mandatory for over 2000$ orders. Payment by ACH/WIRE/CHECK. 5-10% discount for Educational institutions, Government/National labs.