Kindermann HDMI-HDBT Extender² - 4K30 Tx - RS-232 - HDMI

The Kindermann HDMI-HDBT Extender² - 4K30 Tx is a professional-grade HDMI HDBaseT transmitter designed for extending high-definition video and audio signals over long distances using a single CAT6a/7 cable. Ideal for commercial AV installations, digital signage, and conference rooms, this transmitter supports 4K resolution at 30Hz with 4:4:4 chroma subsampling and can transmit signals up to 40 meters at 4K or 70 meters at 1080p. It features RS-232 control, IR pass-through, and Power over HDBaseT (PoH) for simplified cabling.

Advantages

Reliable signal extension up to 70m at 1080p and 40m at 4K, reducing cable clutter with PoH technology. Metal housing ensures durability in demanding environments. Supports HDCP 2.2 for compatibility with protected content.

Suitable for

• Professional AV installations in corporate, education, and hospitality settings
• Digital signage and video walls requiring long-distance HDMI transmission
• Conference rooms and lecture halls needing centralized control via RS-232

Key specifications

• Max Video Resolution: 4K@30Hz (4:4:4) / 4K@60Hz (4:2:0)
• Max Transmission Distance: 40 m (4K) / 70 m (1080p) over CAT6a/7
• Video Bandwidth: 10.2 Gbps
• HDMI Input: 1x HDMI Type A
• HDBaseT Output: 1x RJ45
• HDMI Loop-out: 1x HDMI Type A
• Control: RS-232 (3-pin Phoenix), IR In/Out (3.5mm)
• HDCP Support: 2.2 / 1.4
• Power over HDBaseT: Yes (Rx powered by Tx or vice versa)
• Power Supply: DC 12V/1A (included)
• Color Depth: 8-bit (4K), 12-bit (1080p)
• Audio Formats: LPCM, Dolby Digital, DTS, DTS-HD, Dolby TrueHD
• EDID Management: Pass-through
• Housing Material: Metal
• Operating Temperature: 0°C to 40°C

Recommendations

For optimal performance, use high-quality CAT6a or CAT7 cables. Ensure the power adapter is connected to the transmitter or receiver as needed for PoH. This extender is ideal for extending HDMI signals in professional AV systems.