Why does the USB-C to DisplayPort Cable not connect to my USB-C monitor?

Our USB-C to Displayport Cable supports a bi-directional connection.

However, for bi-directional support, please check directly with the monitor manufacturer to ensure the monitor accepts a DisplayPort signal over USB-C.

While not all USB-C monitors support DisplayPort to USB-C signals, there is now a growing number of certified displays that do support this.

Here is a list of some of those:

BENQ EX3501R
BENQ EW3270U
BENQ SW271
ACER PE320QK
ACER XR342CKP

More details regarding DisplayPort to USB-C support:
USB-C monitors need to properly support "pin assignment E" in order to support DisplayPort to USB-C signals.