HGLRC XJB F440 F428 F438 F4 Tower Flight Controller Betaflight OSD 4in1 40A Blheli_S ESC for 65mm-250mm RC Racing Drone Model hglrc xjb f440 f428 f438 f4 tower flight controller betaflight osd 4in1 40a blheli s esc for 65mm 250mm rc racing drone parts
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