User guide
 INSTALLING THE ULTRALITE-MK3 HYBRID HARDWARE
19
If you are connecting via USB2
Some USB ports on computers are USB Version 1.1 
ports, which support low-power, low-bandwidth 
peripherals such as your computer’s mouse and 
keyboard. USB 1 ports do not support the high-
speed operation necessary for the UltraLite-mk3. If 
you are not sure if the USB ports on your computer 
are Hi-speed USB2 or not, check your computer’s 
documentation. Or check your computer as 
follows:
■ On the Mac, you can run System Profiler (Apple 
menu> About This Mac> More Info...) to view the 
specifications for each USB port on your Mac. 
Look in the hardware list for USB and click it. If the 
USB bus description on the right-hand side says 
USB High Speed Bus, then your Mac has USB2.
■ On Windows, open Device Manager and expand 
the Universal Serial Bus section. There should be 
an “Enhanced” USB host controller present.
☛ Due to the way all USB 1.1 and USB 2.0 
devices share bandwidth, you will achieve better 
overall performance by placing 1.1 and 2.0 devices 
on separate busses, if possible. For details, refer to 
the tech support database at www.motu.com.
1 Before you begin, make sure your computer and 
the UltraLite-mk3 are switched off.
2 Plug the flat “type A” plug of the UltraLite-mk3 
USB cable (included) into a USB2-equipped socket 
on the computer as shown below in Figure 4-1.
3 Plug the squared “type B” plug of the USB cable 
into the UltraLite-mk3 I/O as shown below in 
Figure 4-1.
Figure 4-2: Connecting the UltraLite-mk3 to the computer via USB.










