Handy adapter cable enables USB connectivity to traditional RS-232 serial ports. Dual-layer foil- and braid- shielding minimizes EMI/RFI interference. Hot-swap design ensures easy, trouble-free device removals. Included mini CD contains drivers for PCs running Windows 98 through Windows 7. Optional adapter (P100-000 - not included) opens up DB25 serial device compatibility. Cable Type: USB/Serial; Connector/Port/Interface: Serial RS232:USB 2.0; For Device Type: Digital Camera; Modem; PDA; Connects Devices (From/To): Serial RS232 to USB 2.0 Devices.