That's called a router - used to descramble channels on a digital cable. I had one in use which I had to pay $8 a month rent from Spectrum.
Cable co. is forcing me to rent or buy what they call a
digital converter box. All i’ve seen are ones to receive over the air broadcast. i couldn’t give a rats ass abouut installing an outdoor antenna to my house’. So, what is needed to descramble channels. Well i think that’s what is needed. All i’ve seen are for terrestrial tv. thanks