The Shuttle accessory POS01 is compatible with the Shuttle All-in-One-PC X50V4 It will add four serial (COM) one parallel (LPT) port & one RJ11 port for a cash drawer to the back panel of the PC Interfaces Ports Connector 2x Serial port (Sub-D 9 pins male) • 1x Parallel port (Sub-D 25 pins female) • 1x Digital IO for cash drawer (DIO RJ11 connector 12V or 24V) RJ-45 Ports 2x Serial port (RJ45 connector) Physical Form Factor Expansion Card In The Box Printed Circuit Board (PCB) • 4 screws • Power connector cable (4 pin) • Ribbon cable • Type label sticker (Rating label) • Multi-language quick installation guide (EN DE FR)