FrSky Taranis X9D Plus SE 2019 RC Transmitter (Banggood, Aliexpress: Model memories: 60 models (expandable by Micro SD card), Weight: 670g (without battery), Backlit LCD resolution: 212*64, Color: Night Blue/Carbon Fiber, Smart Port, Operating current: 130mA@8.2V, Micro USB interface: supports 2S Li-battery balancing charge, Dimension: 200*194*110mm (L*W*H), Compatibility: ACCST D16 and ACCESS receivers, Number of channels: 24 channels, Item name: X9D Plus SE Transmitter, Operating system: OpenTX, Operating Temperature: -20℃ ~ 60℃ (-4℉ ~ 140℉), Operating voltage range: 6.5 – 8.4V, Micro SD card slot and DSC Port, Internal RF module: ISRM-S-X9 (the best price with coupon)).
Basically copy coupon, view price history or create e-mail price alert. You probably want to know what is the best price?
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. Only one coupon available!
Link: Banggood product page
1. ($275.08): BGESJY8
you should apply the coupon in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/feV
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(I don’t think these’re gonna work, but you can try ’em out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – FrSky Taranis X9D Plus SE 2019 RC Transmitter [EU] ($-3)
Price history and price alert
Price history (for all/most countries) for FrSky Taranis X9D Plus SE 2019 RC Transmitter is here. The lowest price was: $212.49.
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)).