MT30A-OPTO-BK1 Specifications: Continuous Current: 30A Burst Current: 35A(10 sec.) Input Voltage: 2S-4S LiPO Weight: 10.3g with wires and heat shrink wrap Dimensions: 29x15mm Features: MCU: 24MHz EFM8BB10F8 FETs: Peak 120A 3oz copper PCB Thrust performance equivalent to F39x ESCs miniquadtestbench.com