There is 1 PCI slot on the DockUnder-Office. Maximum card dimensions is 260mm (L: length, including L-bracket thickness) x 115mm (W: width, including gold fingers) x 24 mm (H: height, including PCB 1.6mm, components side 17mm, solder side 5mm). The maximum power rating of PCI card is +5V 1A, +3.3V 1A, +12V 100mA, -12V 100mA.