Warranty - Get a 2-year limited warranty and excellent US-based customer support when you register your product with VisionTek within 30 days of purchase. Operating systems - Compatible with Ultrabook, MacBook, Microsoft Surface Pro, Chromebook, as well as Windows 7 and up, Chrombook OS, Mac OS X, 10.13 and up operating systems. Intel Core i7 recommended with 4GB memory minimum. External Power required - This dock does not supply power to your laptop. Plug and display - built-in USB 3.0 DisplayLink technology provides certified plug and play without the need of additional graphics drivers or software for workspaces requiring effortless hub efficiency. Dual 4K display - connect 2 monitors and a single laptop in ultra HD (4096 x 2160 @ 60Hz): 2x 4K DisplayPort, 2x 4K HDMI, 1x USB-C (Output only), 6x USB-A 3.0 Ports (5 Gbps transfer speed), 1x RJ45 (10/100/1000) Gigabit Ethernet, lock slot, and additional headphone audio line out and microphone in-line jack. Includes: 1 USB-C to C cable and 1 USB-A to C cable.