... for sample test ,7-20 days for mass productSpecifications1.USB TO RS232 Adapter , High -quality USB-DB9M 2. CE,FCC,ROHS 3 ... -2325.Size:67*35*19mmFeature :2.0 USB-DB9M TO RS232 Adapter1. USB2.0 format is completely backward compatible with USB1.12 ... . Easy to install, fast (with the product CD-ROM drive)3 ...