UNITEK Y-108 Serial Cable Black USB Type-A DB-9

The UNITEK Y-108 Serial Cable Black USB Type-A DB-9 provides a direct connection between modern computers with USB Type-A ports and legacy devices that use a DB-9 serial interface. The cable supports reliable data transmission and stable serial communication without requiring a native serial port on the host computer. Its black jacket offers a neutral appearance suitable for office and industrial environments.

Advantages

This serial cable enables plug-and-play connectivity for devices that require RS-232-style serial communication by converting USB signals to a DB-9 interface. It reduces the need for additional adapters or expansion cards and simplifies setup for diagnostics, configuration, and data transfer tasks. The cable is engineered for consistent performance over typical cable lengths and is compatible with a wide range of serial devices when used with appropriate drivers.

Suitable for

• Connecting barcode scanners, receipt printers, or POS terminals with DB-9 ports to USB-only computers
• Programming or configuring industrial controllers, PLCs, and embedded systems that use serial communication
• Serial console access to routers, switches, and network equipment for maintenance and troubleshooting
• Data logging and monitoring with sensors or measurement devices that output RS-232 signals

Key specifications

• Connector A: USB Type-A (male)
• Connector B: DB-9 (male)
• Color: Black
• Cable function: USB-to-serial signal conversion for RS-232 communication
• Typical use environment: Office, retail, laboratory, light industrial

How to use

Install any required drivers on the host computer according to the operating system's instructions, then connect the USB Type-A end to an available USB port and the DB-9 end to the serial device. Configure serial port parameters (baud rate, parity, data bits, stop bits, flow control) in the terminal or application software to match the connected device. For most modern operating systems, the cable will enumerate as a virtual COM port; verify the assigned port number and select it within your software.

Usage recommendations

Place the cable away from high-power cables or strong electromagnetic sources to minimize interference. Use the shortest practical cable length for critical data paths and ensure secure mechanical connections at both ends to prevent intermittent contacts. When used in industrial settings, confirm grounding and shielding requirements for the connected equipment.