The only serial port is the micro USB on that tablet. Having held one in my hand, I didn't see any other than the headphone and SD card port. Enlighten me please.I have a Dell Venue 8 Pro with Win 8.1 Pro and have used ARC536Pro, Sentinel and Scanner Screen. Connecting to rear serial port with StarTech null modem/USB adapter FTDI. I'm also using ProScan with 396 & 996 so I think the 536 version will work when it comes out. No problems after I stopped using front USB.