If you are a lover of computer science and electronics , you like to stay up to date with technological news and you do not miss any detail, buy the SonicWall 02-SSC-6820 Firewall at the best price. Type: Anti-Spyware Firewall Wired Plug-in Product: Yes Plug Type: EU Nest Links: 2 rj45 x 8 USB RJ45 USB-A 3.2 Device length: 135 mm Frequency: 50-60 Hz 5 GHz Ports: 10 Power Supply: Wired Amperage: 3 A AC Input Frequency: 50-60Hz