This SpeedyBee BLS 8Bit 50A 3 - 6S 30x30 4in1 ESC is perfect for RC hobbyists. Whether you're into high - speed racing or precision flying, it's got you covered. With dimensions of 45.6(L)x44(W)x6.1mm(H) and weighing 13.8g with heat sink, it's compact and lightweight. The firmware is SpeedyBee BLS 50A, continuous current is 50Ax4, burst current is 55A(5S), and it supports power input from 3S - 6S LiPo. It comes with a 35V 1500uF low ESR capacitor, 5x Silicone O - ring M3, 1x XT60 70mm power cable, 1x SH1.0mm 8pin 30mm Cable, and 5x Silicone grommet M3*8.1mm. Ideal for powering your RC vehicles and ensuring smooth operation.