Fluke 884X-Usb Usb to RS232 Cable. Mfg part Fluke 2675479. Fluke 884X-USB features USB-to-serial-RS-232 interface adapter cable, Converts from standard DB 9-pin serial to USB 2.0, Requires an available PC communications port, 1.65 m cable length, Includes cable and USB driver disk (CD-ROM).