Scanner Device Tray, 5-1/2" × 10"This 5 1 2" x 10" Scanning Device Tray is a great way to store scan guns, other types of scanning devices or even cell phones off of the work surface but easily accessible. It is height adjustable on the channel upright you install it on, typically the StackStrut uprights on our workstation overheads, but it also works on UniStrut and 80 20 extruded aluminum applications.