With a WC Pro Gold Mount plate, the Wooden Camera Gold Mount Slide for C400/C300mkIII/C500mkII runs a Canon C400, C300 Mark III or C500 Mark II from a Gold Mount battery. It's Wooden Camera's Battery Slide Pro for those cameras: the custom slide attaches directly to the back of the camera without rods and supplies battery voltage to the camera through a 4-pin XLR connector.

It keeps the camera's battery compartment open, so an internal battery can still be fitted and batteries can be hot-swapped, with the DC input on the camera-right side switching between the block battery and the on-board battery. The battery plate slides to adjust its position and is held by a thumbscrew.

Three D-Tap ports supply battery voltage to accessories, and a digital fuse cuts off those accessory outputs while leaving the camera powered. The slide weighs 349.27 g and measures 152.4 x 101.6 x 44.4 mm.