It is the video capture card that can capture both HDMI-compatible video and HDMI-compatible audio at the same time and transmit audio and video signals to computers and smart phones for preview and storage and support max input resolution 3840x2160 30Hz, max output resolution 1920x1080 60Hz for high quality recording and live streaming. Being a driver-free video capture card, it can be used without driver and external power supply. Moreover, it is small and easy to carry, providing you with great portability for outdoor and indoor live streaming without problems. It is constructed of metal material. The length of this product is 9.8cm, the width is 5.4cm and the height is 1.3cm. Suitable for high clarity acquisition, live broadcasts, conference rooms, video recording, teaching recording, medical imaging, game entertainment live broadcasting, etc Item Name: Video Capture Card Material: Metal Output Interface: 1 x USB3.0, 1 x HDMI-compatible Audio Interface: 1 x Microphone, 1 x 3.5mm HDMI-compatible Input: Compatible with HDMI-compatible 1.4b, Support HDCP 1.4, Maximum Support: 4k (3840x2160 30 hz) HDMI-compatible Output: with HDMI-compatible Loop Output, Maximum Support: 4k (3840x2160 30 hz) Support EDID/HPD Support System: for WindowsXP 7/8/10/11, for Linux, for Mac O, for Android 5.0 or above Features: High Resolution, Plau Play, Driver Free Size Details: L: 9.8cm/3.86", W: 5.4cm/2.13", H: 1.3cm/0.51" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Video Capture Card 1 x USB3.0 Power Supply Data 1 x User Manual