ZyXEL NPS-520 MFP Print Server. Network connection type: Ethernet LAN. Weight: 62 g. Operating temperature range (T-T): 0 - 50 °C. Certification: CE. FCC 15B, C-tick. Dimensions (WxDxH): 76.5 x 57 x 25 mm, Power supply type: 7 VDC/0.5 A, Compatible operating systems: - Microsoft Windows 98 (SE), Windows 2000, Windows XP, Windows ME, Windows 2003 - Unix/Linux