https://www.raidsonic.de/products/adapter_multidocking/multi_docking/IB-DK2102-C/datasheet_IB-DK2102-C_e_v1.1.pdf Premium aluminium enclosure • Three video interfaces (HDMI®, Mini DP™ and VGA) • Supports 4k@30 Hz resolution (single mode, HDMI® or mini DP™) • Dual monitor function – connect two extended monitors at the same time (only Windows®) • Three USB 3.0 Type-A interfaces, data transfer rate up to 5 Gbit/s • One Type-C™ charge port for Power Delivery 2.0 up to 60 W (20 V@3 A) • SD and microSD (UHS-I) card reader for most common card specifications • 3.5 mm stereo combo jack (microphone in / audio out) • Gigabit LAN RJ45 interface supports 10/100/1000 Mbit/s bandwidth