Description 🔥Genuine Product | Official Authorized by Manufacturer. 🔥90 Days Warranty against manufacturer defect. High quality Industrial grade USB to RS485/422 data converter, FDTI-FT232 are most stable & highest compatibility compare to others in the global market. Product name： USB to RS-485/422 Converter USB 2.0 Brand: UOTEK by UTEK Technology Specification model： UT-890A Main Chipset: FTDI FT232 Standards: USBV1.1, 1.0, 2.0, RS-485, RS-422 EIA ● USB Signal: VCC, DATA+, DATA-, GND, FG ● RS-485 Signal: T/R+, T/R-, GND ● RS-422 Signal: T/R+, T/R-, RXD+, RXD-, GND ● Working mode: Asynchronous, point to point or point to multi-point, 2 lines half-duplex or 4 lines full-duplex ● Direction control: Adopts data flow direction auto control technology to distinguish and control the direction ● Baud rate: 300-921.6Kbps auto-detect serial signal ● Loading Capacity: Supports point to multi-point communication, allows to connect 32 sets RS-422 or RS-485 device ● Transmission Distance: 1,200m(9,600bps) for RS-485/422, no more than 5m for USB ● Port protection: Surge, ±15KV ESD protection ● Connector: USB-A male, DB9 male ● LEDs for indicating PWR TXD, and RXD activity ● Transmission Media: Twisted-pair or shielded cable ● Dimension: 1555mm×36mm×16mm（L×W×H） ● Operating Temperature：-40℃ to 85℃ Relative Humidity: 5% to 95% ● Transmission Distance: 0-1200m ● Supports Win2000/2003/2008/2012/XP/Vista/7/8/8.1/10/11/CE/Mac/Linux Specification model： UT-891 Main Chipset: Silicon Labs CP210x ● Standards: USBV1.1, 1.0, 2.0, RS-485, RS-422 EIA ● USB Signal: VCC, DATA+, DATA-, GND, FG ● RS-485 Signal: T/R+, T/R-, GND ● RS-422 Signal: T/R+, T/R-, RXD+, RXD-, GND ● Baud rate: 300-921.6Kbps auto-detect serial signal ● Transmission Distance: 1,200m(9,600bps) for RS-485/422, no more than 5m for USB ● Connector: USB-A male, DB9 male ● LEDs for indicating PWR TXD, and RXD activity ● Transmission Media: Twisted-pair or shielded cable ● Dimension: 1555mm×36mm×16mm（L×W×H） ● Operating Temperature：-40℃ to 85℃ ● Relative Humidity: 5% to 95% ● Supports Win2000/2003/2008/2012/XP/Vista/7/8/8.1/10/11/CE/Mac/Linux Included 1 x UTEK UT-890A or UT-891 1 x Retail Box Downloads: Latest FTDI Driver Download: http://www.ftdichip.com/Drivers/VCP.htm Latest CP210x Driver Download: https://www.silabs.com/developers/usb-to-uart-bridge-vcp-drivers?tab=downloads User Manual Download Here http://www.ioline2u.com/UserManual/3R online IOlines Network UT-890A Manual.pdf Shipping & Warranty Postage Method: POSLAJU / J&T / Auto Assign by Shopee Item usually will be post out same day / next working day Item ship from Malaysia Parcel usually will be arrive within 1-3 working days 90 Days Warranty against manufacturer defect About Us Nobody is perfect, but we will try our best to serve your satisfaction and will improve from time to time. Your suggestion & understanding is highly appreciated.