The
2
USB ports on the side are the downstream ports dedicate to USB 3.0
u
pstream port
(on the bottom of monitor), they are compliance with USB 3.0 standard.
The top one is compliance USB
b
attery
c
harge
s
tandard
v
ersion 1.2, that can charge
portable device, max to 2A current.
1-8 LT2223dwC Flat Panel Monitor Users Guide
The
2
USB
3.0
ports are the downstream ports
connect to USB type keypad
,
plug in the USB type keypad to this ports or plug in the USB type Mouse to this port.
