Hi Jackie I have connected a 1Tb external disc drive to the Braille Sense, and it worked fine. But this was one that needed mains power. It was the same one I tried with the Plextalk Pocket. It might have worked, but it took so long I got nervous and stopped it. Pele ** To leave the list, click on the immediately-following link:- ** [mailto:access-uk-request@xxxxxxxxxxxxx?subject=unsubscribe] ** If this link doesn't work then send a message to: ** access-uk-request@xxxxxxxxxxxxx ** and in the Subject line type ** unsubscribe ** For other list commands such as vacation mode, click on the ** immediately-following link:- ** [mailto:access-uk-request@xxxxxxxxxxxxx?subject=faq] ** or send a message, to ** access-uk-request@xxxxxxxxxxxxx with the Subject:- faq