IOGEAR 4 Port Dual-Link DVI KVMP with 2.1 Sound Audio GCS1204 Supports resolutions up to 3840 x 2400 The integrated 2-port USB 2.0 hub is available for each computer to share multiple peripherals connected to the hub or via an external powered USB 2.0 hub Audio ports allow for connecting powered PC speakers for stereo sound and a single microphone for audio input/output to each computer Setup is fast and easy; simply plug the cables into their appropriate ports