Features: brand new and high quality 2 in 1 expansion dock adopts aluminum alloy for shell to accelerate heat dissipation and stable performance. Dual HDMI-compatible display interfaces expansion meet your multi-interface expansion needs. Small size and portable, easy to travel, easy to put in a briefcase, no burden on you. for Shell material: aluminum for shell with excellent metal texture. HDMI-compatible interface supports 4K 30Hz resolution give you a cinema-like experience. Specifications: Product Name: Type-c to Dual HDMI-compatible Hub Type-C interface (input): compatible devices need to support Type-c HDMI-compatible interface: Support for HDMI 4K 30Hz 60Hz USB3.0 interface: data transfer rate up to 5 Gbit/s for Shell Material: Aluminum for shell with excellent metal texture Size: approx 5.6x4.75x1cm/2.2x1.87x0.39in Package Includes: 1 PC x 2 in 1 Docking Station note: Only the above package content, other products are not included. Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is1-3cm.