Descriptions Fully compatible with USB 2.0 and USB 1.1 specifications, this new ultra high-speed compact-size 4ports hub supports high speed data transfer rate of 1.5/12/480 Mbps. Features Fully compatible with USB 2.0 Specification Fully backward compatible with USB 1.1 standard Supports transfer rate of 1.5/12/480 Mbps 500mA each port is reliable at up to 15 feet of transmission Supports self-powered mode & bus-powered mode Supports hot plug & play One upstream port (Type: Mini-B) and four downstream ports (Type: A) One LED to indicate the hub status Power adapter & USB 2.0 A to Mini-B cable incl. Downstream ports have automatic connect and speed detection function plus over-current protection with auto recovery Connects up to 127 USB devices by cascading multiple Hubs Compatible with Windows 98SE/ME/2000/XP, and Mac OS X Material: Aluminum Color: Silver-Black Dimensions (W x D x H): 82 x 40 x 16 mm System Requirements IBM compatible PC & Mac USB host card or USB Hub device Windows 98SE/ME/2000/XP, Mac OS X Warranty One-year limited warranty /Retail package Availability: Usually ships the same business day USB 2.0 High-Speed 4-Port Aluminum Slim Hub with Power Adapter UB20-4PRegular price: $29.00Sale price: $12.00, 5/$55.00 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 !