Brand DTECH Model DT-5019 Quantity 1 Color Black + silver Material Plastic housing Interface Type USB to RS422 / RS485 Application USB 2.0 backward compatible; Adopt data flow automatic control technology Automatically recognize and control data transmission direction; Baud rate: 300~9216000bps Automatically detects serial signal rate; Load capacity: Support point to multi point each converter can be allowed to connect 32 x RS422 / RS485 interface devices; Surge 600W protective power +/-15KV electrostatic protection; Support devices with RS422 / RS485 interface (Surveillance cameras video collector fingerprint attendance machine program-controlled switches numerical control machine single chip microcomputer) Supports System Windows 98 / ME / 2000 / XP / Vista Linux Mac Packing List 1 x Converter (120cm) 1 x Software CD 1 x Connector 1 x Chinese / English manual