A convertible slot scanner assembly for capturing at least one object appearing in a field of view (FOV) is provided that includes a chassis body, a circuit board, an imaging sensor, a controller, an image decoder, and a first window. The chassis body includes an upper side, a front side forming an opening, a rear side, and an optical cavity. The circuit board is positioned at or near the upper side of the chassis. The imaging sensor, controller, and image decoder are all operably coupled with the circuit board, with the imaging sensor being directed toward the optical cavity to capture an image frame, the controller being in communication with the imaging sensor, and the image decoder configured to receive the image frame. The first window is configured to at least partially cover the opening of the chassis.