Feature: 1. Adopt terminal form, flexible wiring, high sensitivity, internal automatic completion of communication protocol conversion, data transmission and reception control, etc. 2. Fully functional and easy to use, a module with high stability, low power consumption and high cost performance. 3. The baud rate is 300BPS‑128000BPS (RS232), 300BPS‑128000BPS (RS485), long transmission distance, and high communication rate. 4. Support USB port, comply with USB2.0, compatible with USB1.1, electrical interface, 5PIN terminal; interface standard, compatible with EIA/TIARS-232C, RS485 5. Suitable for cash register, PLC, access control system, barcode printer, scanner, CNC hotbed, industrial instrument and many other fields. 6. Small in size and light in weight, convenient to carry and use at any time, very convenient and practical. Specification: Item Type: USB to RS485 / RS232 Serial Communication Data Converter Material: ABS Application Scenarios: Cash register/PLC/access control system/bar code printer/scanner/CNC hotbed/industrial instrument Interface Standard: Compatible with EIA/TIARS-232C, RS485 System Requirements: For Windows7/8/9/10/OS X 8.6 Support Baud Rate: 300BPS-128000BPS Electrical Interface: 5PIN terminal block Communication Interface: TXD, RXD, GND (three-wire full-duplex, RS232), A.B (two-wire half-duplex, RS485) Support USB Port: Compliant with USB2.0, compatible with USB1.1 Size: Approx. 6.32 x 2.73 x 1.34cm / 2.5 x 1.1 x 0.5in Working environment: -40℃ to 85℃, relative humidity is 5% to 95%. Package List: 1 x USB to RS485 / RS232 Serial Communication Data Converter Note: 1. Do not place the product in an environment that is too corrosive, humid and high temperature!2. Please supply power according to the operating voltage, using other voltages may cause fire and product damage!