It's got two coaxial connectors for hooking up a cable box or modem, as well as a serial port for any printer or other peripheral device. It also provides two community ports that you should connect the unit into a server, a Wi-Fi router, or another device that requires a https://kenwoodkvl40chefxl49259.aboutyoublog.com/37722042/how-much-you-need-to-expect-you-ll-pay-for-a-good-ups-ups-beeping