Basically copy coupon, view price history or create e-mail price alert. Do you want to know what the best price is?
This board now has 6 UART ports, 2A output, PWM pads on the corner, Item name: OMNIBUS F4 NANO V7 Flight Controller, Solder pads added for SmartAudio and Camera Control (next to Video pads), 5V BEC, Tantalum Capacitors added for noiseless gyro reading, FPC port for Frsky RX
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. There is one coupon available! Pretty cool, huh?
Link: Banggood product page
1. ($38.24): Parts8
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGAF4, TTxBG10, BGNANOV7, BG12MRP, BGGEPPart, 0e7f33, FBCOUPON1, BgcLuBofErtA10, BGAFF10OFF, BGCuponation10, BGDAVIS, BGHONEY2110
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Price history (for all/most countries) for Airbot OMNIBUS F4 NANO V7 RC Flight Controller is here.
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)).