Brand Power and signal are fully isolated for stronger anti-interference ability and safer use Adopts CH340E chip, no crystal oscillator, providing more stable performance Industrial protection includes TVS transient suppression, electrostatic ESD protection, surge protection, AB signal line short-circuit and power short-circuit protection (short-circuit does not cause damage) Transmission distance can reach up to 1200 meters (tested at 9600bps) Supports baud rate up to 256000bps; higher baud rate used for paired mutual transmission Supports hot plug, compatible with Windows 98/CE/2000/2003/2008/XP/WIN7/WIN8/WIN10/VISTA, LINUX, and OS X systems; USB interface supports hot plug Automatically distinguishes and controls data transmission direction without handshake signals (such as RTS, DTR, etc.) or jumper settings for mode conversion, ensuring compatibility with existing communication software and interface hardware Equipped with power indicator, TXD, and RXD indicators Specifications: Power supply: USB 5V Transmission distance: up to 1200 meters (tested at 9600bps) Chip solution: CH340E Communication protocol: pure hardware device, not restricted by protocol Baud rate: up to 256000bps Material: ABS Size: approximately 70x27x13mm Color: Blue Quantity: 1 piece Note: Please allow 0-1cm error due to manual measurement. Please ensure you are comfortable with this before purchasing. Due to differences between monitors, the image may not reflect the actual color of the item. Package includes: 1 x USB to RS485 Communication Module (Other accessories shown in the picture are not included)