Interface: USB (USB to Serial DB9 Adapter incl.) Ultra-sensitive scrolling wheel Glowing Side Thumb Button: Instant Internet access from any applications 550 dpi Stylish silver color For use with IBM PC and compatibles Serial version can be installed in Windows 95/98/NT 4.0 environments USB version is supported by Windows 98/2000 PCs Manual & Software CD incl. One year limited warranty /OEM brown box package Availability: Usually ships the same business day MS-RCG-UBSRegular price: $12.00Sale price: $4.00, 5/$16.25 Secure On-Line Ordering Site Tel: (888) 860-4416 Fax: (732) 416-8788 sales@pctekonline.com Business hours are from 10:30am to 7:00pm EST Monday to Friday 3 Kellogg Court Suite 11 Edison NJ 08817 Copyright (C) 1997-2011, PCTekOnline.com All rights reserved. Thank you for shopping at PCTekOnline.com !