This is $21.23 on amazon.com right now
I’m guessing the one you’re looking at isn’t actually from Samsung. The one that looks exactly like this and has Samsung in the description for $21 is made by ChiChiFit. The genuine chargers are $48-50 on the Mothership.
How long is the cable?
About 3 feet.
I paid full price for this awhile ago and never regretted it. The super fast charging is no joke. The lower your battery, the quicker the charging.