SG90 9G Micro Servo This is the most popular mini servo. Only weighs 9 gram and gives you a 1.5 kg/cm torque. Pretty strong regarding its size. Suitable compatible for beam type robots. Key features: Translucent body Lightweight Less noise Sg90 9G servo parameters: Size: 21.5mmX11.8mmX22.7mm Weight: 9 grams No load speed: 0.12 sec / 60 deg 4.8 V Locked-rotor torque: 1.5-1.7kg/cm 4.8V-6V Operating temperature: -30~~+60 degrees Celsius Dead zone setting: 5 microseconds Working voltage: 4.8V-6V A2212 1400kv Motor Specification: KV: 1400 Max Efficiency: 80% Max Efficiency Current: 4-10A >75% Current Capacity: 12A/60s No Load Current @ 10V: 0.5A No. Of Cells: 2-3 Li-Poly Motor Dimensions: 27.5 x 30mm Shaft Diameter: 3.17mm Weight: 60.1g 30A Brushless speed controller ESC MultiCopter Quad-rotor X-copter Specification: Compatible with: 400-450 helicopters / Aircraft or Quad-Rotor Multi RC Helicopter -Output: Continuous 30A, Burst 40A up to 10 Secs. -Input Voltage: 2-3cells lithium battery or 5-9 cells NiCd/NIMh battery. -BEC: 2A / 5V Linear mode. -Max Speed: 210,000rpm compatible for 2 Poles BLM, 70,000rpm compatible for 6 poles BLM, 35,000rpm compatible for 12 poles BLM. BLM: BrushLess Motor With T plug and 3.5mm banana connectors