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Questions about this product? Free pre-sales support from a senior specialist — product questions, compatibility checks, BOM quotes, price confirmation — typically answered within one business day. Need camera placement or system design work? Engineering time is $175 per hour (qty 1 = 1 hour). Hardware buyers get up to one hour ($175) credited back on their order.
The StarTech ST121HDBTPW is an HDMI extender kit designed to transmit high-definition video and audio signals over standard Cat 5e or Cat 6 Ethernet cabling. This single-cable solution simplifies installations by eliminating the need for multiple video cables and allows you to place displays up to 330 feet (100 meters) away from the source. It's ideal for digital signage, conference rooms, and surveillance monitoring where extending HDMI signals is required without signal degradation. The ST121HDBTPW kit includes both the transmitter and receiver units, powered by a single 12V DC power adapter, reducing clutter and simplifying power management.
This extender supports standard HDMI video signals and is compatible with devices featuring HDMI output ports. It functions with Cat 5e and Cat 6 Ethernet cables. For optimal performance and resolution, use Cat 6 cable for distances up to 330 feet (100 meters). The maximum digital resolution supported is 4K (3840 x 2160) at 30 Hz up to 35 meters (115 feet). At the maximum distance of 100 meters (330 feet), it supports 1080p (1920 x 1080) resolution at 60 Hz. It also transmits 7.1 surround sound audio, ensuring full audio fidelity.
The operating temperature range for both the transmitter and receiver units is 0°C to 40°C (32°F to 104°F). Storage temperature should be kept between -10°C to 60°C (14°F to 140°F). The units operate within a humidity range of 0% to 80% RH (non-condensing). Each unit requires a 12V DC power supply (included) with an input current of 0.5A and an output of 1.5A, resulting in a total power consumption of 18 Watts for the kit. Ensure the Ethernet cable used is of good quality and properly terminated to achieve maximum distance and signal integrity.
Manufacturer-verified compatible cameras, recorders, mounts, accessories, and licenses for this product. Adjust quantities and add the entire bundle to your cart in one click.
N HDBaseT extender that carries 4K HDMI video and a USB 2.0 channel over a single Cat 5e, Cat 6, or Cat 6a cable run — purpose-built for AV
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