The Speedy Bee F7 Stack V3 has pretty much every feature you could think of and more. This may be the most feature-rich stack available today. Pretty much anything you can think of, this stack provides - 128KHz PWM Frequency, 500MB Blackbox Flash Memory, Onboard battery meter on the FC, 8 motor support, WiFi flashing and full Betaflight configuration using the Speedy Bee App on your phone, and so much more.