HP LD4235 41.92-inch LED Digital Signage Display - Manual (Page 55)

Daisy chain displays
Use this function to digital video signal from a computer on multiple displays.
1. Connect a signal input cable (DisplayPort cable) to the DP IN port of the first display.
2. Connect one end of the signal input cable to the computer.
3. Connect one end of a signal input cable to the DP OUT port of the first display and the other end to the
DP IN of the second display.
DisplayPort cable
NOTE: The number of displays that can be connected to one output may vary depending on signal status
and cable loss. If the signal status is good, and there is no cable loss, it is possible to connect up to 9 displays.
If you want to connect more than this number of displays, it is recommended to use a distributor.
When multi-connecting in/out cascade format, no loss cables are recommended.
DP OUT does not work when connecting to a third-party product.
Daisy chain displays 45