FIG. 1 is a top view of our keyboard sterilization device design;
FIG. 2 is a view of the keyboard sterilization device standing on end, showing the back side of the device;
FIG. 3 is a view of the keyboard sterilization device standing on end, showing the front side of the device;
FIG. 4 is a right-hand side elevational view of the device; and,
FIG. 5 is a left-hand side elevational view of the device.
The broken lines are for environmental purposes only and form no part of the claimed design.