Multi-function interface: The converter has 12 interfaces, including HDMI, USB 3.0, USB 2.0, RJ45 Ethernet port, TF/SD card slot, USB C and more. In this way, you can expand the laptop to multiple peripheral devices, such as monitor, mouse, keyboard, wired network, etc., to meet the needs of different use cases. Hd Video output: With HDMI and VGA ports, the converter supports 4K@30HZ HD video output, allowing you to connect your laptop to a HD monitor, projector or TV for a more realistic and clear picture. Fast transfer and charging: Equipped with USB 3.0 interface for high-speed data transfer and easy transfer of large files. At the same time, the built-in USB CPD (Power Delivery) function supports up to 100W charging output, so that your device charging faster and more convenient. Stable network connection: The built-in RJ45 Ethernet port supports 10M/100M/1000M wired network connection, providing a more stable and fast network connection, suitable for high-speed Internet access or office work scenarios. (Based on your choice A/B) Aluminum alloy housing: The converter housing is made of high-quality aluminum alloy material, which is both strong and durable, while also having good heat dissipation performance, maintaining the stability and reliability of the equipment during long-term use. Color: Light grey Model: 1C12 Net weight: 115g Line length: 18cm/7.08 inches Size: 130*60*18mm/5.11*2.36*0.70 inches) Packing size: 170*90*20mm/6.69*3.54*0.78 inches Material: Aluminum alloy Resolution: 4K@30HZ Interface: 1.HDMI 2. See * 1 3. USB2.0 * 3 4.RJ4510M/100M 5.TF/SD card 6.USB C 5Gbp/s 7.USB C PD100W 8.3.5mm Audio port 9.VGA Package includes: 1pcs Dedicated Docking Station