The Switch 4 Portable Live Production Switcher and Control Surface Kit from B&H is a suitcase-style, all-in-one live streaming system supporting up to DCI 4K resolution. It features a built-in 17.3" screen but can be expanded via DVI, HDMI, or DisplayPort outputs for multiviewer applications. Switch 4 provides four HD-SDI live inputs and four matching outputs as well as a 4K HDMI output. It can be used for live production, mobile editing, and as a DIT station. Other features include 500GB of internal storage and pre-installed vMix software. The compact tactile control surface features a T-bar and 12 backlit program, preview, and overlay buttons that work with the vMix interface. It has four downstream delegation buttons for quickly activating overlays, and it offers assignable function buttons that can be set to vMix shortcuts for customized control.