This Vizio VF551XVT main board c168 is a used untested module designed for Vizio televisions. It is compatible with model numbers E500-C3 and E550-V3. This board is a vital component for your TV and is sure to fix any issues you may be experiencing. It is important to note that this board is a module and not a complete TV. It is recommended to seek professional help when replacing your TV’s main board to ensure proper installation and avoid any damage to your TV.