The power supply and signal are fully isolated, with stronger anti-interference ability and safer use. USB to RS485 converter allows PC users to connect their RS485 devices to systems that use USB interface. By attaching the converter to a PC, it will no longer be necessary to open the chassis or turn off the PC to install the hub. With the converter, the user instantly gets one extra high-speed RS485 port. In addition, since the power is derived from the USB port, there are no cumbersome power adapters. This makes the converter especially suitable for PLCs, printers, POS systems, and industrial control devices. Power supply: USB 5V Transmission distance: up to 1200 meters (9600bps) Chip solution: CH340E Communication protocol: pure hardware device, not subject to agreement Baud rate: up to 256000bps, supporting mutual transmission to support higher baud rate The power supply and signal are completely isolated, and the anti-interference ability is stronger Protection: TVS transient suppression protection, electrostatic ESD protection, surge protection, short signal line and short-circuit protection with power supply (short-circuit without burning) Temperature range: -40°C - 80°C Support system: supports hot swap, supports Win98, Win2000, Win2003, Win2008, XP, Win7, Win8, Win10, VISTA, LINUX, OS X system; USB interface can be hot swapped Automatically identifies and controls the data transmission direction, without any handshake signals (such as DTR, etc.), no jumper settings required to achieve mode conversion, ensuring compatibility with existing communication software and interface hardware Different batches may have variations in the color of the PCB board inside the converter; color cannot be specified. Computer display differences may cause slight variations in the perceived color of the converter Colour: blue Material: PCB + plastic + metal Size: 70x27x13mm Package Contents: 2 * USB to RS485 Communication Module Only the above package content is included; other products are not included Note: Light and different displays may cause the color of the item in the picture to appear slightly different from the real thing. The measurement allowed error is +/- 1-3cm.