Below are the available bulk discount rates for each individual item when you purchase a certain amount
The OEM CarbonBird™ 40A ESC is made for MultiCopters - with full house connectors pre-installed - specifically wiithout a BEC - OPTO - less EMI in the multicopter frame and less heat - you get a lot of electrical noise from 6 or 8 high amp uBECs in a radial pattern at the centre of your multicopter - The 40A Optos are well cooled with full 40Amp 6S rating - burst of 55A for 10 secs - very smooth throttle curve and good quality silicon wires and Large Capacitor. Best of all they output a massive 1008w on 6S (25.2v/55amps for 10 secs =>1300w) when needed with 2 x large Caps ; Plug-n-play JST on DC side and pre-fitted 2.0mm Female GBC on extra long 135mm three phase wires - fully RoHS - Flight tested with MultiWiicopter code - NAZA and Wookong - they are both 400 and 490hz compatible.
Important beginner NOTES on ESC set up : Read this before connecting any ESC !!