Reliable serial connectivity: Ugreen 80111 converts a USB 2.0 port to a DB9 RS-232 serial connection for connecting legacy serial devices to modern computers.

Wide compatibility: Supports Windows 10, 8.1, 8, 7, Vista, XP, 2000, Linux 2.4 or above, and Mac OS X 10.6 and above.

Versatile use: Works with modems, ISDN terminal adapters, digital cameras, label printers, palmtop computers, PDAs, cash registers, CNC, PLC, tax printers, POS systems, barcode scanners, and other devices with DB9 serial ports.

Stable performance: Offers data transfer rates up to 1 Mb/s for dependable communication.

Durable design: Gold-plated connectors enhance conductivity and provide extra durability.

Easy to use: Powered directly by the USB port with no external power supply required.

Important note: Not compatible with cutting plotters or SCM devices.