Definitely YES!
MPPS v21 software now can be used with MPPS cables with PCBs:
with the three versions of MPPS pcb, you can use v21 software for flash
if not, better not flash MPPS v21
MPPS V21 Software Download:
https://mega.nz/#!9CAFhTpD!NRtyud2wia9n7-XSOnxTCvtDf69re1oT7V2SlnioqyU
MPPS V18 Software Download on Mega:
https://mega.nz/#!9Dpg3JwL!PFVR8bbMhC8HaDhBE075IP8iryOdbHDk3kkBNqmShiw
MPPS V18 Car List Download:
http://www.fobdii.com/wholesale-457-mpps-main-tricore-multiboot-with-breakout-tricore-cable.html
MPPS V21 software + MPPS V21 hardware: 100% working
http://www.fobdii.com/wholesale-457-mpps-main-tricore-multiboot-with-breakout-tricore-cable.html
The newest MPPS v21 PCB comeswith better protection components (imported, not made by Chinese), improved a lot according to the issues of mpps cable from customers feedback
Hope it helps.