Stamp - up to 2 ounces (56.7g) - 70¢
Padded mailer (box of 100) - +/- 34¢
#6 envelope - +/-7¢
Walk out the front door and put it in your mailbox - FREE (exercise is good for you)

If the chip is worth BIG $$$$, then disregard the above - go to the P.O. for BOXES, INSURANCE, TRACKING, etc., etc.