PCI to PC/104-Plus and PCI-104 Interface Boards February 1, 2015 Douglas ElectronicsInc. — No Comments A wide variety of products for connecting PCI boards to the PC/104 environment are provided. Interfaces with 1-4 PCI boards, where the PCI boards are either parallel or vertical to the PC/104 boards, and choices of having the PCI boards above or below the PC/104 stacks are available. About Douglas ElectronicsInc. Interface products for PC/104, PC/104Plus & PCI-104 to ISA, PCI, cPCI and other busses.