To accept in-person card payments through Retail Sales, you will need a Stripe M2 Mobile Reader. You can order one directly from your Stripe account.
Steps to Order
Log in to your Stripe dashboard at dashboard.stripe.com
Navigate to Terminal. If you do not see it in the left sidebar, use the search bar to find it.
Select Order a Card Reader, then click Shop.
Scroll through the available readers and select the Stripe M2 Reader.
Choose your quantity and click Add to Cart.
Click the cart icon and complete checkout.
Stripe will mail the reader to you. Once it arrives, you can start accepting in-person card payments in Retail Sales right away.