Check the listing for details. RockBoard by Warwick Base Plate - Quad 4.2. Condition: New. Listed at 84.99 USD. Enhance Your RockBoard's Pedal Management The RockBoard by Warwick Base Plate is an add-on attachment to your existing RockBoard that enhances stability, promotes even better cable management, and is easy to install with no drilling required. RockBoard Base Plates use the same slot design as standard RockBoards, so you can use QuickMounts to mount your power supplies or extra pedals away from your main stomping surface. Sweetwater’s pedalboard fanatics find outstanding value in adding matching base plates to their existing RockBoards, as they further expand pedalboard functionality without increasing pedalboard size. Lastly, this rigid, cold-rolled aluminum plate also reduces pedalboard flexing, giving you an even sturdier pedalboard solution.