SG90A 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 for beam type robots.
 
Key features:
 
• Translucent body
• Lightweight
• Less noise
 
 
TS90A 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: Φ27.5 x 30mm

Shaft Diameter: Φ3.17mm

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 for 2 Poles BLM, 70,000rpm for 6 poles BLM, 35,000rpm for 12 poles BLM.
(BLM: BrushLess Motor)
With T plug and 3.5mm banana connectors