Focusrite Scarlett 18i8 USB-C Audio/MIDI Interface (3rd Generation) - Manual (Page 13)

13
Connecting your Scarlett 18i8
Power
Your Scarlett 18i8 should be powered from an external 12 V DC, 1.2 A mains adaptor. A suitable
adaptor is supplied with the unit.
IMPORTANT: We very strongly recommend that you only use the supplied mains adaptor. Failure to
use this adaptor is likely to permanently damage the unit and will also invalidate your warranty.
USB
USB Port Types: The Scarlett 18i8 has a single Type C USB 2.0 port (on the rear panel). Once the
software installation is complete, simply connect the Scarlett 18i8 to your computer; if your computer
has a Type A USB port we recommend you use the Type A-to-Type C USB cable provided with the unit.
If your computer has a Type C USB port, please obtain a Type C-to-Type C cable from a computer
supplier.
USB Standards: Note that because the Scarlett 18i8 is a USB 2.0 device, the USB connection requires
a USB 2.0-compliant port on your computer. It will not operate correctly with USB 1.0/1.1 ports:
however, typically a USB 3.0 port will support a USB 2.0 device.
When the USB cable has been connected, turn the Scarlett 18i8 on with the rear panel power switch.