Software-configurable RX and TX gain and baseband filter, 1MHz to 6 GHz operating frequency, Open-source hardware, Software-controlled antenna port power (50 mA at 3.3 V), Hi-Speed USB 2.0, SMA female antenna connector, Compatible with GNU Radio / SDR# / and more, Up to 20 million samples per second, 8-bit quadrature samples (8-bit I and 8-bit Q), SMA female clock input and output for synchronization, Convenient buttons for programming, Internal pin headers for expansion, Half-duplex transceiver, USB-powered.
Go down and check coupons out. Remember to check price history if it is available. You probably want to know what is the 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 coupon code price check (UTC time):
Banggood
Banggood warehouse is located in Europe 
. This is new product in my database, so I don’t know if this price is good.
Link: Banggood product page
1. ($180.41): 2022ACTIESNL
2. ($182.35): BG00c906
you should apply the coupon in your cart 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): BG9b65c5, ADMITAD2212
(these coupons are old, so probably won’t work)
Price history and price alert
Price history is not available for this item (not enough database records)! The lowest price was $165.99 though.
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)).