18Gbps USB-C 4K60 HDBaseT 3.0 Extender with 100W PD (70m)
KanexPro EXT-USBCPD4K-70M extends USB-C video, USB 2.0, and 100W PD over HDBaseT 3.0 up to 70m. 4K60 4:4:4, HDCP 2.3, RS-232, PoC. TX/RX kit with 4 USB…
The KanexPro EXT-USBCPD4K-70M bridges USB-C laptops and remote displays over a single CAT6A/7 cable, delivering 4K60 4:4:4 video, USB 2.0 peripheral access, and up to 100W device charging — all via HDBaseT 3.0. Purpose-built for BYOD conference rooms, classrooms, and collaboration spaces, this extender eliminates the cable clutter and adapter chains that plague USB-C-to-display installations by converging video, data, and power into one HDBaseT link up to 70 meters. The transmitter accepts a USB-C source with DP Alt Mode (v1.2a) and passes uncompressed 4K60 4:4:4 video at 18Gbps, along with HDR, HDR10+, Dolby Vision, and HLG. A dedicated CHARGE port enables 100W USB-C PD to keep laptops powered during extended sessions. The receiver outputs HDMI 2.0b to the display and provides four USB 2.0 device ports for cameras, keyboards, mice, and storage. RS-232 pass-through and bidirectional 24V PoC simplify system integration and installation.
- HDBaseT 3.0 extender with USB-C input supporting DP Alt Mode (v1.2a) for video, USB 2.0 data, and power delivery
- 18Gbps video bandwidth with uncompressed 4K60 4:4:4 (8-bit) up to 40m and 4K30 4:4:4 (8-bit) up to 70m over CAT6A/7
- USB-C Power Delivery up to 100W via dedicated CHARGE port on the transmitter
- HDMI 2.0b output on receiver with HDCP 2.3 compliance for secure content playback
- HDR, HDR10+, Dolby Vision, and HLG pass-through for full dynamic range support
- Four USB 2.0 device ports on the receiver (3× USB-A, 1× USB-C) with 5V/1A per port
- RS-232 signal pass-through and API command control via SERVICE port for room automation
- Bidirectional 24V PoC — power either TX or RX, the other unit powers over the CAT cable
Specifications| HDMI Compliance | HDMI 2.0b |
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| HDCP Compliance | HDCP 2.3 |
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| Video Bandwidth | 18 Gbps |
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| Video Resolution | Up to 4K@60Hz (4:4:4 8bit) |
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| Color Space | RGB, YCbCr 4:4:4, YCbCr 4:2:2, YCbCr 4:2:0 |
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| Color Depth | 8/10/12-bit |
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| HDR Formats | HDR, HDR10, HDR10+, Dolby Vision, HLG |
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| Audio Formats | LPCM 2.0/5.1/7.1CH, Dolby TrueHD, Dolby Atmos, DTS-HD Master Audio, DTS:X |
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| USB Compliance | USB 2.0 |
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| ESD Protection | IEC 61000-4-2: ±8kV (air-gap) & ±4kV (contact) |
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| Transmission Distance | 4K60Hz (4:4:4 8bit): up to 130ft/40m • 4K30Hz (4:4:4 8bit): up to 230ft/70m • USB 2.0: up to 230ft/70m (CAT6A/ |
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| Front Panel | 1x CHARGE [USB-C] • 1x USB-C IN [USB-C] • 2x USB 2.0 DEVICES [USB-A] |
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| Rear Panel | 1x SERVICE [USB-C] • 1x RS-232 [3-pin phoenix] • 1x HDBaseT OUT [RJ45, 24V PoC] • 1x DC 24V |
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| Side Panel | 1x PoC ON/OFF [DIP switch] |
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| Front Panel | 1x HDMI OUT [HDMI Type A] • 1x USB 2.0 DEVICES [USB-C] • 3x USB 2.0 DEVICES [USB-A] |
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| Rear Panel | 1x SERVICE [USB-C] • 1x RS-232 [3-pin phoenix] • 1x HDBaseT IN [RJ45, 24V PoC] • 1x DC 24V |
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| Side Panel | 1x PoC ON/OFF [DIP switch] |
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| Housing | Metal Enclosure, Black |
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| Dimensions | TX/RX: 120mm (W) x 113mm (D) x 25.5mm (H) |
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| Weight | TX: 353g • RX: 352g |
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| Power Supply | AC 100-240V 50/60Hz → DC 24V/2.7A |
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| Power Consumption | TX/RX with full USB devices: 51.36W • Without USB devices: 10.08W |
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| Operating Temp | 32-104°F / 0-40°C |
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| Storage Temp | −4-140°F / −20-60°C |
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| Operating Humidity | 20-80% RH (non-condensing) |
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| Storage Humidity | 10-90% RH (non-condensing) |
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| 1x | Transmitter (TX) |
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| 1x | Receiver (RX) |
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| 2x | 3-pin 3.5mm Phoenix Connector (male) |
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| 1x | 24V/2.7A Desktop Power Supply |
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Questions
- What is the maximum resolution and distance combination for the EXT-USBCPD4K-70M?
- Uncompressed 4K60Hz (4:4:4, 8-bit) is supported up to 130ft/40m, while 4K30Hz (4:4:4, 8-bit) is supported up to 230ft/70m over CAT6A/7; USB 2.0 data extends the full 230ft/70m.
- What HDCP and HDR formats does the EXT-USBCPD4K-70M support?
- HDCP 2.3 on the HDMI output, with HDR, HDR10, HDR10+, Dolby Vision, and HLG pass-through.
- How do I send API commands to the EXT-USBCPD4K-70M?
- Connect a USB-C cable from the TX SERVICE port to a PC or control system, open a serial terminal at 115200 baud, 8N1, and send ASCII commands ending in CR LF; type "help" or "?" to list all commands.
- How do I control the TX's HDCP behavior?
- Use "set tx input hdcp y" (0=OFF, 1=HDCP 1.4, 2=HDCP 2.2, default HDCP 2.2) for the input, and "set tx output hdcp y" (1=Follow sink, 2=Follow source, 3=Force HDCP 1.4, 4=Force HDCP 2.2, default Follow sink) for the output.
- What power supply does the EXT-USBCPD4K-70M use?
- A DC 24V/2.7A desktop power supply (AC 100-240V 50/60Hz input, CE/FCC/UL), with bi-directional PoC so only one end needs to be powered; PoC is enabled or disabled via a DIP switch on each unit.
- What are the dimensions and weight of the TX and RX?
- Both units measure 120mm (W) x 113mm (D) x 25.5mm (H) (4.72 in x 4.45 in x 1.00 in); the TX weighs 353g (0.78 lb) and the RX weighs 352g (0.78 lb).
- There is no video after connecting a USB-C laptop. What should I check?
- Verify the laptop supports DP Alt Mode over USB-C, since not all USB-C ports output video, check that the green Link LED is on for both TX and RX, try a different or shorter CAT6A cable, and use the "get status" API command to check connection state.
- USB devices connected to the receiver are not recognized. What should I check?
- Confirm the USB-C source supports USB 2.0 data over USB-C, ensure each USB device does not exceed the 5V/1A per-port limit, try the device on a TX-side USB port to verify it works, and confirm the CAT6A cable uses direct T-568B interconnection.
- What makes the EXT-USBCPD4K-70M suited for BYOD conference rooms?
- A single CAT6A/7 cable carries DP Alt Mode video up to 4K, USB 2.0 data, RS-232 control, and up to 100W of USB-C PD charging back to the presenter's laptop, extending up to 70m for 4K30 or 40m for 4K60.
- What downstream USB connectivity does the receiver provide?
- Four USB 2.0 device ports (3x USB-A, 1x USB-C) at 5V/1A per port for keyboards, mice, printers, or USB cameras at the display end.