XT60 Pigtail with Capacitor Set 2-4S (1000UF/2200UF 25V). 1x XT60 (Amass genuine). If you find it hard to tune your PIDs or have a noisy video feed, adding capacitors should help to improve things. A capacitor will absorb power spikes generated by brushless motor during braking and in this way will help remove electronic noise from your setup, which is the source of the problem.
eBay