Products> Data Communication > USB to RS-232

USB to RS232 Converters

Model No:USI-120F
Good applications for Notebooks and Industrial PCs peripherals devices、Terminal Adapters and POS terminals、Peripherals interface、General-purpose RS-232 data link
  • Features & Spec.
  • Diagram


  • FTDI CHIP inside
  • Fully meets Industrial specification
  • USB to serial converters from Single chip USB to RS232
  • USB 2.0 Full Speed,USB 1.0/1.1 compliant
  • 480 Mbps USB data rate
  • Transmit and receive LED drive .
  • Serial Interface 2 Port
  • 15 KV ESD protection for all serial ports
  • Connector: DB9 Male and MINI USB B type
  • Cable:USB Type A and MINI USB B Type 


USB-port 1*mini USB2.0 B ( to PC) 
RS232-port 2*DB-9 Male
Chips FTDI 232H
USB Compliant USB2.0/1.1 spec.
RS232 Speed 921.6kbps 
FIFOs 4k bytes Buffer ( TX & RX each  4Kbytes per channel)
O/S Supported


Windows 98, 98SE, ME, 2000, Server 2003, XP ,Server 2008, XP 64-bit
Windows Vista, Vista 64-bit, Server 2008 R2,Win7, Win8, Win10
Mac OS-X
Linux 2.4 and greater
Working Temperature -30 ~ +75℃
Power Source Bus Power 
Serial I/O Pertects 15KV ESD Protection for all signals
Size 60.1(W)x22.5(H)80.5(D)mm