Features: 1. Powerful, Three Functions (Usb To 485, Usb To 232, 232 To 485) Are Integrated Into One. At The Same Time, There Is A Ttl Interface, Which Can Realize Usb To Ttl, Ttl To 232, Ttl To 485 And Other Functions. 2. Convenient Wiring, Using Plug-In Terminal Wiring 3. You Can See The Communication Status, With Sending And Receiving Indicator Lights 4. Terminal (485) With Surge Protection 5. Small Size And Easy To Carry Driver support: WIN7, XP, Linux, etc., specially designed for access control, PTZ, PLC, industrial instrument communication! indicator light Instructions for use: 1.USB to serial port (232): DIP switch 1,2 ON,3,4,5,6,7,8 OFF 2.USB to 485: DIP switch 3,4,7,8 ON,1,2,5,6 OFF 3. Serial port (232) to 485: DIP switch 5,6 ON, 1,2,3,4,7,8 OFF 4. USB to TTL (5V TTL): DIP switch 1,2,3,4,5,6,7,8 OFF TTL only retains the interface. material: plastic Color as shown Package Contents: 1 x Converter 1 x Data cable Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.