Since the USB port was removed to save space, it includes a USB-TTL adapter for power and programming.
The datasheet is available on the manufacturer’s web site:
We’ve got another listing that includes headers HERE
Please consider our our multi-item discount found at the top of the listing page; it allows us to combine shipping and pass on the savings to you.
10% off 3, 15% off 5 items. Applies to most of our items.
FREE Shipping to the USA and APO Addresses
Only a few bucks more than the ones from China that take weeks to arrive.