Feature: 1. INDUSTRIAL GRADE CHIP: Adopting industrial grade chips FT232 and SP3485 to ensure the stability, reliability and good compatibility of high speed communicating. 2. USB B PORT AND 5.08mm TERMINAL: Adopting USB B interface and 5.08mm terminal, smooth plugging and unplugging, sturdy and reliable. Adopting large package components, more stable and reliable. 3. INDEPENDENT DESIGN: The module comes with independent power isolation and signal isolation circuits, which effectively protects the device and signal from interference and damage. 4. SAFE DESIGN: USB port with electrostatic ESD protective circuit, effectively prevent electrostatic damage and protect the rear circuit and equipment. RS485 port with overcurrent prevention, surge prevention, gas discharge prevention circuits. 5. PREMIUM MATERIAL AND TECHNOLOGY: Aluminum alloy shell with oxidized frosted finish, accurate hole opening, firm and reliable. The module realizes the interconversion of TTL signal and RS485 signal without the need of sending receiving control. Specification: Item Type: Interconverter Serial Port Module Material: Aluminum Alloy USB Port Indicator: Green Light Is On When USB Port Receives Data. RS485 Port Indicator: Green Light Is On When RS485 Port Receives Data. Baud Rate Support Range: Up To 2Mbps Product Size: Approx. 71x48mm / 2.80x1.89in. Package List: 1 x Interconverter Serial Port Module1 x Screwdriver1 x Connection Cable 1 x Terminal