Best DC controller USB adapter?

[McJones9631]

So I've been working on a project with my Dreamcast controller, and I'm looking for a USB adapter for the DC controller. I can't find the usual Mayflash or Raphnet adapters (they're all sold out everywhere with no restocking in sight). What other USB adapter options do I have?

[Xer0510]

http://www.brunofreitas.com/node/84

[RightSprite UK]

if your looking for the DC to have a usb the Brooks Wingman Converter SD is my jam.
https://www.youtube.com/watch?v=H-P2Orm0GYA