A technique is provided for coupling and uncoupling device boards for a computer system during any operational state of the computer system. A tool-free latch assembly is provided for coupling a device switchboard and the device boards to a mounting structure of the computer system. The tool-free latch also may have a transparent portion for transmitting light from a device status light to interior and exterior areas of the computer system. A non-mechanical switch also may be utilized in conjunction with the tool-free latch assembly to control power to the device boards.