1. All-metal body with good heat dissipation effect and long service life 2. Host interface: USB3.0 3. Input interface: 1 channel 4K HDMI high-definition video signal 4. Audio input: 1 way LPCM audio signal 5. Loop output: 1 channel 4K HDMI high-definition audio and video signal output, support 2K display 6. HDMI input resolution: in line with the HDMI1.4 standard, support 4K 2160P 30FPS, 2K 1440P, 1920x1080P 60Fps, 720P 7. No driver installation, no power supply, plug and play 8. Product size: 9.5x6x2.2cm

http://olla.gr/ec289-4k-hdmi-usb3.0-hd-video-capture-recorder-box/