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No fee required for Finger prints or Passport Stamping or Plastic Cards. It is covered in your I-485 Adjustment of Status Fee.
You need to carry your Passport, Original Notice, EAD, Drivers Licence
and I-485 Receipts. Usually they will look at your Original Notice
and your Drivers Licence.
It all depends on that particular day. Usually the wait time will
be a max of 1 hour.