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The UGREEN 80111 (model CM326) USB-A 2.0 to DB9 RS-232 Female Adapter is a robust and compact interface converter designed to connect modern USB-equipped computers or laptops to legacy serial RS-232 DB9 devices. Whether you’re working with CNC machines, POS systems, modems, data loggers or industrial automation gear, this adapter enables seamless communication via a USB port. Featuring gold-plated connectors, automatic handshake support, and wide OS compatibility (Windows, Mac OS, Linux), it offers reliable performance without the need for an external power supply. Ideal for professional, industrial, or field-service use when you need to bridge between USB and classic serial devices.
| Model / SKU | UGREEN 80111 (CM326) |
| Interface – Input | USB Type-A Male (USB 2.0) |
| Interface – Output | DB9 Female (RS-232) |
| Supported Protocols / Modes | Asynchronous serial – Point-to-Point or Point-to-Multipoint |
| Maximum Data Rate | Up to approx. 1 Mbps |
| OS Compatibility | Windows (10/8.1/8/7/Vista/XP/2000), macOS (10.6+), Linux (kernel 2.4+) |
| Power Supply | USB-bus powered – no external power required |
| Connector Finish / Shell | Gold (or nickel)-plated RS-232 shell, durable PVC housing |
| Dimensions & Weight | Approx. 20 × 20 × 5 mm (adapter body) / ~200 g (varies) |
| Warranty Terms: | 6-months warranty provided by UGREEN MAURITIUS – 101 Multimedia. |
| Brand | |
|---|---|
| Product Categories | Adapters |
| Interface Type | DB9, USB-A |
