[USB to RS485 Cable] It allows you to easily connect RS485 devices to your computer's USB port. Suitable for industrial communication, network communication and automation control. ^^ [FT232RNLChip] Built-in FT232RQ and SP485EN chips to ensure stable communication, ideal for applications with high communication standards ^^ [Compatibility] Compatible with Linux, WinCE, Win11/10/ 8.1 /8/7/XP and other operating systems, the cable is integrated with TX and RX indicators, which can visually display the status of data transmission. ^^ [Pinout]GND/Black, B-/Yellow, 5v Power/RED, 120R Pin 1/Brown, A+/Orange, 120R Pin 2/Green ^^ [Buyer Support] Jhoinrch provides lifetime technical support for this USB to 485 Cable, one year product replacement, any of your questions will be answered within 1 business day