Cisco 2504, Refurbished. Networking standards: IEEE 802.1Q, IEEE 802.3u, Cabling technology: 10/100/1000Base-T(X). Security algorithms: WPA, WPA2. AC input voltage: 100-240 V, AC input frequency: 50 - 60 Hz. Product colour: Black, Blue, Certification: UL 60950-1, 2nd Edition EN 60950:2005 EMI and susceptibility (Class B): U.S.: FCC Part 15.107 and.... Dimensions (WxDxH): 43.9 x 203.2 x 271.2 mm, Weight: 1.59 kg