The Rocketfish Cable Amplifier works exactly as advertised! In fact, it would have been impossible to write this review without it since my cable modem had dropped out again (Comcast has replaced my modem and tweaked my levels twice) and only came back up after I installed this amplifier where the cable line comes into the house.
This is a well made unit that comes with a power supply and mounting screws. It connects to the coax cables like any other splitter and has a red power LED to indicate that it is working.
We bought this at a local electronics store (Rocketfish is actually a brand name owned by one of the retail chains) because I needed it right away.