Features
Support USB to RS485 bidirectional conversion
Fast communication, stable and reliable, better compatibility
Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & anti-electrostatic
Onboard resettable fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock resistance
3 LEDs for indicating the power and transceiver status
Support Multi Systems: Linux, Android, WinCE, Win11/10/8.1/8/7/XP, etc.
Onboard Original Chips:
Onboard original CH343G and SP485EEN chips, providing better stability and compatibility, built-in lightningproof tube, resettable fuse, ESD and TVS protection circuits, etc.
Transmission distance up to 1.2km:
The USB signal can be converted into a balanced differential RS485 signal and the transmission rate is stable. The reliable speed is 300bps ~ 3Mbps, the transmission distance is about 1.2km for RS485, and about 5 meters for USB.

Online Tutorial/How to use Document: n9.cl/pmi4r

Package Content
USB TO RS485 (B) x1
USB-A male to female cable x1
Screwdriver x1