This is a VIZIO T-Con Board for the 55\" M55Q6-J01 model, with the part number 55.55T45.C11 55T45 C02 CTRL Tcon. It is compatible with Vizio brand and is sold as a unit of quantity 1. This T-Con Board is perfect for those looking to replace an old or damaged one. It is a genuine Vizio product and will ensure optimal performance of your TV.