ADAPTER PLATE. pedalboard The Side Tray 8 is

The Side Tray 8 is designed specifically for mounting a Digitech Whammy-sized pedal or two expression/volume/wah pedals to either side of your board at ground level

or Rear Flat 8

Mountable to all parts in the Morton catalog

if you have a Long style part with front/rear parts on one end

or a great way to break up a Long Slant board with the addition of the Front Flat 8 and an Adapter Plate

ADAPTER PLATE. pedalboard The Side Tray 8 isThe Adapter Plate is designed to mount 2 front rear parts together without the use of a Long style part. In other words, if you have a Long style part with front rear parts on one end, use 1 adapter plate on the unmounted side for added stability. If no Long style parts are used in your setup, use 2 adapter plates; 1 on each side, to hold 2 front rear parts together. For more detail, refer to our Support page for a video on how when to use adapter