Review on 🖥️ Waveshare USB AVRISP XPII Programmer: Compatible with AVR ISP mkII and AVR Studio 4/5/6/7, Supports Advanced Versions by Nick Gathings

100% MkII compatible, works great with AS7 out of the box, comes with all cables imaginable. This programmer is 100% compatible with the original MkII - so much so that the AS7 offers automatic firmware updates per connection. It supports "Read Target Voltage" function, which can save much time in programming troubleshooting. If you check the voltage and it doesn't meet your expectations, you'll know right away that you need to check the connection and the target power supply. Also supports TPI protocol programming required for the new XMEGA and ATTINY chips. TPI programming is FASTER compared to old Skool 6 pin vendor and only requires 4 pins. wise, I've bought more than 10 of these units and never had a problem. Some of them have been used daily for over a year. If you work with AVR8 chips in Atmel Studio, then in my opinion this is the best programmer, including the expressive and difficult to use STKs. I have both the STK500 and STK600 but end up using the MkII every time unless I need to do some exotic high voltage programming. If you need to work in both Arduino and AS7, this programmer is even better because you can switch back and forth and everything just works (the only caveat is that you don't have to open the "Device Programming" tool in AS if you are programming with Arduino). Don't waste your time with cheaper MkII clones - fully functional, has the connections you expect and works right out of the box.