Turnigy Multistar 30 Amp Multi-rotor Brushless ESC 2-4S (OPTO)

Details:
• Smooth and linear throttle control
• Fast response to throttle input
• Atmel MCU
• Stalled motor protection
• Throttle signal lose protection
• Safe power-on (throttle lockout)
• Support 480Hz+ high refresh rates (up to 499hz)
• Compatible with programming card

Specs:
Constant Current: 30A
Input Voltage: 2-4 cells Lipoly
BEC: None (OPTO)
PWM: 8 KHz
Max RPM: 240,000rpm for 2 Poles Brushless Motor
PCB Size: 41mm x 24mm
Discharge Plugs: Male 3.5mm Bullet Connector
Motor Plugs: Female 3.5mm Bullet Connector
Weight: 32g

i need  1000 for each peace.