Name: 18Gbps USB-C HDBaseT 3.0 Extender with 100W PD (4K60 to 40m, 4K30 to 70m)
Brand: KanexPro
SKU: EXT-USBCPD4K-70M

Question 1

What is the maximum resolution and distance combination for the EXT-USBCPD4K-70M?

Accepted Answer

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.

Question 2

What HDCP and HDR formats does the EXT-USBCPD4K-70M support?

Accepted Answer

HDCP 2.3 on the HDMI output, with HDR, HDR10, HDR10+, Dolby Vision, and HLG pass-through.

Question 3

How do I send API commands to the EXT-USBCPD4K-70M?

Accepted Answer

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.

Question 4

How do I control the TX's HDCP behavior?

Accepted Answer

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.

Question 5

What power supply does the EXT-USBCPD4K-70M use?

Accepted Answer

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.

Question 6

What are the dimensions and weight of the TX and RX?

Accepted Answer

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).

Question 7

There is no video after connecting a USB-C laptop. What should I check?

Accepted Answer

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.

Question 8

USB devices connected to the receiver are not recognized. What should I check?

Accepted Answer

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.

Question 9

What downstream USB connectivity does the receiver provide?

Accepted Answer

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.

Question 10

How does the internal pattern generator help during installation?

Accepted Answer

The TX can output test patterns, including black, checkerboard, color bars, ramps, and PRBS, at resolutions from 480p60 to 4K60 via "set tx pattern x y", letting an installer verify the display and cable run without a live source.