Item Type: Adapter Use: Extended interface Material: Aluminum Alloy Applicable Models: For MacBook Pro 2017 (13 inch and 15 inch) Suitable for MacBook Pro 2016 (13 inch and 15 inch) For MacBook 2015/2016 For ChromeBook Pixel Portable computer with USB-C interface Network Interface: Gigabit Video Resolution: HDMI: 4K (3840 x 2160), backward compatible with 30Hz VGA: 1920 x 1080, backward compatible with 60Hz Working Voltage: 5V~20V Working Temperature: 0~45° Color: Gray / Silver (optional) 1、It supports USB Type-C display port Alt mode. Meanwhile, the standard USB-C interface supports forward and backward insertion. Also, it supports PD charging function, and the maximum power can reach 60W (only 5~20V / 3A charging). Furthermore, port uses black rubber core + nickel plated casing. 2、Adopts standard USB-A interface, it is compliant with USB 3.0 standard 5Gbps transmission, supporting for reading and writing data, U disk, card reader, keyboard, mouse, mobile hard disk, solid state disk, digital camera, etc. With USB 3.0 single port 4.5W (5V / 0.9A) output power, it supports mobile phones and other charging equipment. 3、Supports T-Flash with standard TF card slot, it is with 5Gbps transfer data by using the USB 3.0 standard theory. What's more, it uses standard memory card slot, adopting standard HDMI-male interface. 4、It also supports audio and video transmission, and video supports up to 4K x 2K / 30Hz and backward compatible, supporting analog signal video transmission, furthermore, video supports 1920x1080 / 60Hz, 1920x1080K / 30Hz and backward compatible. Meabwhile, RJ45 port uses imported RTL8153 chip to support 10M / 100M / 1000M network transmission. 5、Using one microphone headphone jack, it is also compliance with the standard (CTIA). Normally the CTIA headset is a white circle. And the microphone's audio recording and playback supports 48K and 44.1K sample rates. 1 x Adapter