It's two coaxial connectors for hooking up a cable box or modem, in addition to a serial port for your printer or other peripheral device. It also provides two community ports that you should link the unit to some server, a Wi-Fi router, or some other gadget that requires a https://byd03691.slypage.com/34489561/the-smart-trick-of-ups-syndome-that-no-one-is-discussing