The IOGEAR Upstream Pro Dual video capture card is able to handle two content streams simultaneously. You can control the card through your smartphone (iOS or Android), or, alternatively, a controller connected via Bluetooth. Up to two live 4K streams can be captured and mixed at 1080p, and one particular feature streamers may enjoy is a command deck that can be used to hotkey up to 18 commands.  Read on: How to switch between your work PC and personal laptop in one click  You can use up to two 4K cameras and grab audio from sources including HDMI inputs, RCA, or microphones. Also: This 2-port 4K KVM switch from IOGear makes switching between computers a cinch IOGEAR has developed eight presets for video work, including resizing, green screen backgrounds, and face cam settings. Both picture-in-picture and split-screen broadcasts, too, are available.