Move USB access farther from the device without giving up control or compatibility. The Black Box EMERALD 4-Port USB 2.0 Switchable Extender is designed for environments where the operator station and the connected equipment cannot sit side by side. It delivers KVM-over-IP extender functionality over LAN and supports distances up to 100 m, giving integrators more freedom in how they place consoles and endpoints. With four ports and support for both USB 1.1 and USB 2.0 devices, it fits shared-device workflows in industrial control, factory floor, classroom, and meeting room applications. The extender can supply up to 600 mA to the downstream USB device, helping maintain stable peripheral operation where bus-powered devices are in play. This is a practical choice when you need dependable remote USB extension rather than a basic cable run. The kit is part of a modular setup, with transmitter and receiver sold separately, so it can be matched to the deployment architecture you already have in mind.