buy HDMI Switch Startech ST121HDBTE HDMI RJ-45 10 cm . The Startech ST121HDBTE adapter is an HDMI extender that allows transmission of digital video and audio signals over long distances using a single Cat5e or Cat6 cable, with a range of up to 70 meters. Thanks to HDBaseT technology, this device offers uncompressed HDMI signal distribution with zero latency, supporting Ultra HD 4K (4096 x 2160 pixels) resolutions, as well as 3D and digital audio, ensuring exceptional image and sound quality even in large buildings or professional installations such as shopping centers, hospitals, schools, or stadiums. Its compact black design and aluminum casing facilitate discreet and durable integration. The Power Over Cable (POC) system stands out, allowing both transmitter and receiver to be powered through a single power source, optimizing installation in environments with limited power outlets and reducing necessary cabling. It operates with an input voltage of 110-240 V AC and a working voltage of 12 V with 0.5 A current, offering flexibility and stability for prolonged use. Its compact dimensions—67 mm width, 80 mm depth, and 25 mm height—along with included mounting hardware, enable professional wall or rack installation. This extender is a highly reliable and efficient solution to extend HDMI signals without quality loss, using existing cabling infrastructure, ideal for professional audiovisual systems requiring secure, simple, and high-definition long-distance connectivity. Includes: RJ45 CableMounting strutsUser manualProduct with plug: YesType of plug: Plug EUType: Interrupter/CommutatorConnections: HDMIfemale plugRJ45Colour: BlackMaterial: AluminiumVoltage: 12 VPower supply: WiredCCSpeakers: 7.1Cable length: 10 cmCertificate: RoHSNot included: Adapter ACAC input voltage: 110 - 240 VAmperage: 0,5 A1,5 A