MCU: STM32F405, Gyro: MPU6000, Input Voltage: Support 3-6S Lipo, BEC Output: 5V@ 3A,: 3.3V @ 0.3A, – Also have 9V @ 1.2A, Size: 38 (L)X386(W) mm, Hole Distance: 30.5×30.5mm.
Get coupons, create price alert or check price history out! Let’s see what best price is ATM.
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. We have found one coupon for this product!
Link: Banggood product page
1. ($36.79): Parts8
put item in your cart and apply coupon code there after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): hotrc10, 502C6B, DYSF4, TTxBG10, bgssaff9, BGGEPPart, AFfbG10, BGVDay10%off, BGAFF10OFF, bGhOnEy10, BGdragonBoat, BGSS10%SW, bgshOOp10, BGRC902, BgoFErTaSchInA10, BGHONEY2110
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Do you need price history chart (for all/most countries) for Upgrade DYS 30.5×30.5mm F4 Pro V2 Flight Controller? There we go. The lowest price was: $28.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).