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Original Dji Brand Esc-30a Opto Brushless Speed Controller,f450 F550 Multicopter Dji Parts Accessories Free Shipping - Parts & Accs - AliExpress
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Dji 30a Opto Brushless Esc (30hz - 450hz) For Dji Flame Wheel F450 F550 & Wookong-m & Naza-m - Parts & Accs - AliExpress
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Amazon.com: Readytosky 30A ESC 2-6S OPTO Brushless Electronic Speed Controller for F450 S500 ZD550 RC Helicopter Quadcopter(4PCS) : Toys & Games
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