Dell P1917S 19" 5:4 IPS Monitor - Manual (Page 27)

About your monitor |
27
USB Ports
• 1 x USB 3.0 upstream - bottom
• 2 x USB 2.0 downstream - bottom
• 2 x USB 3.0 downstream - side
NOTE: USB 2.0 functionality requires a USB 2.0-capable computer.
NOTE: The monitor’s USB interface works only when the monitor is On or
in the power save mode. If you turn Off the monitor and then turn it On, the
attached peripherals may take a few seconds to resume normal functionality.