Features: 1.This adapter is used to convert USB to RS485, compatible with RS232, RS485, RS422 standards. 2.RS485 dedicated conversion chip, can convert RS232 signal to RS485 signal through USB interface. 3.Support RS485 four-wire duplex, the transmission distance can reach 1200 meters. 4.High-strength chip: adopt high quality chip imported from Taiwan to make it faster and more stable. 5.Interface: fully shielded gold-plated interface externally, flat needle for internal contact. Gold-plated for 25mm, which can effectively reduce contact resistance, improve signal interference prevention, and make data transmission smooth. specification: 1. This adapter is used to convert USB to RS485, compatible with RS232, RS485, RS422 standards. 2. RS485 dedicated conversion chip, can convert RS232 signal to RS485 signal through USB interface. 3. Support RS485 four-wire duplex, the transmission distance can reach 1200 meters. 4. High-strength chip: adopt high quality chip imported from Taiwan to make it faster and more stable. 5. Interface: fully shielded gold-plated interface externally, flat needle for internal contact, gold-plated for 25mm, which can effectively reduce contact resistance, improve signal interference prevention, and make data transmission smooth. : Interface Type: 1 x USB, 1 x Male Com port (COM port), 1 x Transfer small plate 5P connection terminal Standard: Full speed USB device interface, compatible with USB V2.0 Master Chip: CH340+ZT323E Baud Rate: 300bps~115200bps Transmission Media: Twisted-pair Package List: 1 x Adapter Cable 1 x Adapter