There are few products which have many hardware versions, and almost every version has a different designed firmware. Select methods from below list to check the hardware version of your TP-Link products you can also check that from 192.168.0.1tp link . 1. Check the label of your device at the back To turn on the device, you can check the label of the device on its back side, this is string of characters "Ver: X.Y" (for e.g. Ver: 1.0) in the field of serial number, and number X is the hardware version of the device. If the character of string is "Ver: 1.1" it means the hardware version is V1. 2. Check Engraved Characters This method is for those products which don't have labels like USB adapter. To find out the hardware version, you need to check the FCC ID number at the end which indicate version of hardware. If there is no FCC ID number like V2 following model number then it is version 3. Products which has Management Inte...