This is HL-340 USB serial port (COM) USB to RS232 USB Nine Serial Line Support Windows 7-64. USB to RS232 conversion cable for USB and serial devices easily connect serial devices with features such as Plug and play, and hot-swappable.
Can meet the notebook connected to the serial device, apply to mini-phones, digital cameras, communication MODEM, ISDN terminal adapters, LED control card.
 
Single crystal 12M Tablet 340 USB port to serial port communication.
USB1.1/2.0 compliant solution.
Built-in 128 byte TX/512 byte RX buffer.
Supports auto-Handshake Protocol.
Support Win95/98/98se/ME/2000/XP/win7 32bit 64bit/Vista/supports full speed USB data transfer protocol.
Design of electromagnetic interference.
Data Exchange application.