An electronic device is provided. The electronic device includes a first buffer configured to store video data and a system on chip. The system on chip may include a compression module configured to compress the video data stored in the first buffer, an encryption module configured to encrypt the compressed video data, and a universal serial bus (USB) hardware interface configured to transmit the encrypted video data. The compression module, the encryption module, and the USB hardware interface may be connected by a hardware signal line which is used to transmit video data.