Not my personal item. Last owner said it was in working condition. The Atlona AT-UHD-EX-100CE-TX 4K HDBaseT HDMI Transmitter is a high-quality audio/video transmitter designed for use in TV, video, and home audio setups. This transmitter is specifically the AT-UHD-EX-100CE-TX model, manufactured by Atlona. It is a reliable choice for transmitting HDMI signals with 4K resolution, making it suitable for a range of audio/video applications. The product does not come with a power supply included, but it is designed to be compatible with various power sources to ensure seamless operation.