A modular digital imaging system adapted to transfer digital images. In one embodiment, the system includes a plurality of modules which are stackable to form a customizable unit. A first one of the plurality of modules provides a first function and has a first electrical connector and at least one attachment member. A second one of the plurality of modules provides a second function different than the first function and has a second electrical connector matable with the first electrical connector. The second module further comprises at least one attachment feature complementing the attachment member whereby the at least one attachment member mates with the at least one attachment feature to securely attach the first and second modules when the first and second modules are stacked. The electrical connector is employed to transfer the digital images between modules when securely attached.