The XD-18 pedalboard is an XD series form factor from Pedaltrain. With six rails, novo spacing and an extra-deep mounting surface, you can stack pedals three deep, and even add a switching system or expression pedals. It is fully compatible with accessories like PT-VDL-MK, Boosters, PT-TFMK-SM and all of the after-market add-ons that are out there.