What is side expansion board?
WADE-8017 has one PCIex1 gold finger. This special gold finger is redefined PCIex1 pin definition, and we put two PCIex1 signal inside. Portwell created a new daughter board from the side to combination, we call it SEB(side expansion board)

Bridging PCIe signals through the Gold Finger to the extension board, WADE-8017 can easily support the functions on a two-slot-added FlexATX or three-slot-added Micro ATX motherboard. This expansion mechanism also supports other interfaces transmitted via specific circuit design and component selection. Therefore, Portwell can quickly make ready a customized solution with additional, project-required features, such as LAN, Mini-PCIe, etc