RS-232 PL Cable for the MS7120, MS9520 and MS9540 printers, PowerLink Coiled Cable, 9 Position Female D Connector with Overmold and Thumbscrews, Color: Black. See MX009-3MA7S or MX009-3MA7C for USB keyboard emulation or MX009-3MA8S or MX009-3MA8C for USB Serial emulation. Call for details.