Check the listing for details. Crestron HD-MD4X1-4K-E HDMI Switcher with Power Supply. Condition: Used. Listed at 39.99 USD. The Crestron HD-MD4X1-4K-E 4K HDMI Switcher is a high-quality product designed to seamlessly switch between multiple HDMI and RJ45 sources with ease. With its reliable brand reputation and advanced connectivity options, this switcher is ideal for home entertainment systems, allowing you to effortlessly transition between different devices for a smooth viewing experience. Crestron's expertise in audio/video technology ensures top-notch performance and functionality for all your multimedia needs. *Device is in perfect working condition and come with power supply.