Gordon,
I have the same B75937 USB 2.0 to TTL UART 6PIN CP2102 Module Serial Converter. Verified by looking at the photo you helpfully included.
I want to connect it to my Ardweeny, but i am confused about which pin from the B7 goes to which pin on the Ardweeny's 6 pin header. Can you help with a pin to pin lineup? Please include the extra DTR pin. In the meantime, I will go solder a header onto the DTR through-hole.
thanks for your help.
~m0j0