These compact USB to Asynchronous Serial RS-232 and
RS-485 mini-converters allow you to add a serial port to your USB only PC. They are perfect connecting to a remote device to gather data or upload a program. USB 2.0 compatibility makes installing them on your PC easy. Versions are available with DB9 connectors and Terminal Blocks for quick wiring. We support RS-232, RS-485 
(2-Wire) and RS-485 (4-Wire) protocols. Need 5 Volt and 3.3 Volt TTL? We even have a converter for that. Our driver software supports operating systems up to Windows 8 with 32 and 64 bit support.
Products specifications
| Attribute name | Attribute value | 
|---|
| Weight | 3.68 oz | 
| Housing Material | Plastic | 
| Certification | FCC, CE | 
| Baud rate | RS-232 | 
| Product color | Blue | 
| Connector 1 | DB-9 | 
| Connector gender | Female | 
| Host interface | N | 
| Output interface | RS-485 | 
| Input voltage | 5 V | 
| Operating temperature (T-T) | 0 - 70 °C | 
| Storage temperature (T-T) | -40 - 85 °C | 
| Operating relative humidity (H-H) | 0 - 95 % |