Lens HD lens, Exposure control automatic, Product Type HD webcam, Interface type USB2.0, Model C500, System support “For MacOS 10.6 / Windows7 / Windows8 / Windows10 or higher; For Chrome operating system / Android 5.0 or higher”, White balance automatic, Microphone omnidirectional dual microphone, Dynamic resolution 3840×2160, Applicable type LCD monitor / desktop computers / notebooks, Camera pixels 8 million pixels, Product size 136×38×37mm, Brand RAPOO, Color black, Focus mode auto focus (fixed focus), Maximum frame rate 30FPS.
Just check coupons out (with price alert and history). Best price?
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 price update (UTC time):
Banggood
Banggood warehouse is located in China. I don’t think there is an active coupon right now – at least in my database.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGa96a9b, BGHONEY2110, 13f142
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
Here is price history (for all/most countries) for Rapoo C500 Webcam 4K. The lowest price was: $62.99.
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)).