USB to RS485 Adapter RS422 Cable with FTDI-FT23+SP213 Chip Terminal Board
DIY Flat Belt Screw Leather Craft Chicago Nail Brass Solid Rivets Stud Head I. 3 Signal light, red is power indicator light, green is send signal, orange is receive signal. 1 x USB to RS-422 RS-485 Adapter Cable(3M).