StarTech.com Serial/USB Data Transfer Cable - 3 ft Serial/USB Data Transfer Cable for Desktop Computer, Notebook, Peripheral Device, Monitor, Sensor, Barcode Scanner, Receipt Printer, POS Device, LED, Digital Signage, Computer, ... - First End: 1 x 4-pin USB 2.0 Type A - Male - Second End: 1 x 9-Pin DB-9 RS-232 - Male - 480 Mbit/s - Shielding - Gold Plated Connector - Black - 1: