1) ID Tech Shuttle Audio jack credit card reader(for paypal, authorize.net and stripe unsafe mode) can be purchased here: POSGuys, UniquePOS or Ebay:
Supported Four Models Only:
ID-80110010-001 (green)
ID-80110010-002 (blue)
ID-80110010-003 (orange)
ID-80110010-004 (black)
Note: Paypal Payment Pro and Authorize.net accounts will work with shuttle reader out of box. If you are using shuttle reader with stripe account, it only can be used after login to your stripe account to enable "Handle card information directly", which is default disabled by stripe. All of our system traffic are encrypted using standard SSL with 2048 bit keys, and credit card numbers are not saved into database. So it's considered to be super safe even after enable "Handle card information directly" setting. Please use this url to enable this setting https://dashboard.stripe.com/settings/integration:
2) Stripe chip card reader supports chip card, apple pay and android pay. It will work with stripe account out of box. It can be purchased here(requires stripe account login).