He is offering a modified cable modem that you install on your existing cable subscription. This one is unlocked and claims your cable provider won't detect it. You will get unlocked speeds say from 3 to 30 megabits. A tenfold increase. It is only modifying locked parameters inside the modem supplied by the specific cable provider.
All of this for a one time fee of $160.... Will only work in one specific town and with one specific cable provider.
$160 happens to be a lot of money in recession time....
Dump your * phone company. NO MORE MONTHLY ^1NTERNET^ *BILLS!!! We offer UNLIMITED *High-Speed +1nternet+ for a ONE-Time small fee ($160.00 - Self Install Kit - Plug & Play)