Mfr Part Number: 910-000184 Features Improved optical technology with 1000 dpi resolution Smooth, precise tracking on a wide variety of surfaces Easy-scrolling Wheel has a comfortable grid-design Tilt Wheel Plus Zoom technology for left-right & up-down scrolling 1000 dpi optical Tilt Wheel Plus Zoom Three-button configuration Combo connectivity (USB or PS/2) Compatible with 32- and 64-bit platforms Certified for Windows Vista Premium solutions Color: Black Package: OEM System Requirements IBM or compatible PC Windows 2000, XP or Vista USB or PS/2 port Availability: Usually ships the same business day. Logitech RX250 Tilt Wheel USB & PS/2 Combo Optical Mouse (Black) MO-RX250BRegular price: $29.99Sale price: $13.50 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) 1997-2007, PCTekOnline.com All rights reserved. Thank you for shopping at PCTekOnline.com!