What does it mean for a monitor to have a DisplayPort out connector?

DisplayPort - Monitors & Monitor Accessories dp slot monitor Connectivity Options 1 Security-lock slot 2 Power connector 3 HDMI port 4 Stand lock 5 DisplayPort 6 DisplayPort 7 USB Type-C dp 96 slot monitor from If your monitor only supports HDMI you can

dp96 slot 2280 SSD PCIe slots x 2 Support A: For stable connection, please use HDMI to HDMI DP to DP USB-C to USB-C