Lenovo USB-C Travel Hub (4X90M60789) is a portable multi-port adapter designed to connect mobile laptops to displays, wired networks, and USB peripherals via a single USB Type-C port, Host Interface: USB 3.0 Type-C (requires host VBUS power of 5V/3D/3A-compatible port; does not operate on weak 5V/0.9A or 5V/1.5V limits), Video / Display: HDMI: Up to 4K @ 30Hz (3840 x 2160), VGA (D-Sub): Up to 1080p @ 60Hz (1920 x 1080), Note: Supports one external display at a time (HDMI or VGA). Network: RJ-45 Gigabit Ethernet (IEEE 802.3ab / IEEE 802.3, includes status LEDs, supports PXE boot and MAC address pass-through on enabled systems), USB Ports: 1 × USB 3.2 Gen 1 / USB 3.0 Type-A, 1 × USB 2.0 (total USB data functionality varies; spec lists USB 3.0/2.0 mix per adapter revision)