1.USB TO RS232 Adapter , High -quality USB-DB9M 3. RS232 DB9M 4. ... test ,7-20 days for mass productSpecifications1.USB TO RS232 Adapter , High -quality USB-DB9M 2. CE,FCC,ROHS 3 ... .0 USB-DB9M TO RS232 AdapterDetails:1.USB TO RS232 Adapter , High -quality USB-DB9M2. CE,FCC,ROHS 3. ... completely backward compatible with USB1.12. Easy to install, fast (with the product CD-ROM drive)3. Injection molding ...