Banggood - FT232RL FTDI USB 3.3V 5.5V to TTL Serial Adapter Module
$2.49
Shareasale.com
as of May 21, 2019 9:45 am
Scroll down the page to compare the FT232RL FTDI programmer price at different stores.
Ebay.com
£2.40
3 new
from £2.40
as of May 22, 2019 9:17 pm
Amazon.co.uk
Aliexpress.com
$5.99
1 new
from $5.99
as of May 22, 2019 9:17 pm
€5.99
2 new
from €5.99
as of May 22, 2019 9:17 pm
as of May 22, 2019 9:17 pm
Amazon.de