TITLE 18 > PART I > CHAPTER 63 > Sec. 1341.
Sec. 1341. - Frauds and swindles

Whoever, having devised or intending to devise any scheme or artifice to
defraud, or for obtaining money or property by means of false or fraudulent
pretenses, representations, or promises, or to sell, dispose of, loan,
exchange, alter, give away, distribute, supply, or furnish or procure for
unlawful use any counterfeit or spurious coin, obligation, security, or
other article, or anything represented to be or intimated or held out to be
such counterfeit or spurious article, for the purpose of executing such
scheme or artifice or attempting so to do, places in any post office or
authorized depository for mail matter, any matter or thing whatever to be
sent or delivered by the Postal Service, or deposits or causes to be
deposited any matter or thing whatever to be sent or delivered by any
private or commercial interstate carrier, or takes or receives therefrom,
any such matter or thing, or knowingly causes to be delivered by mail or
such carrier according to the direction thereon, or at the place at which it
is directed to be delivered by the person to whom it is addressed, any such
matter or thing, shall be fined under this title or imprisoned not more than
five years, or both. If the violation affects a financial institution, such
person shall be fined not more than $1,000,000 or imprisoned not more than
30 years, or both
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Know Your Legal Obligations

Under federal law, you're required to advertise your product or service and
the terms of the sale honestly and accurately. You can't place "shill" bids
on your item to boost the price or offer false testimonials about yourself
in the comment section of Internet auction sites.

You're prohibited from auctioning illegal goods. While many auction sites
monitor their sites to ensure that illegal items are not being offered, the
responsibility for ensuring that a sale is legal rests with the seller and
buyer. Some auction sites post a list of prohibited items as a guide.

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the term ''counterfeit mark'' means -

(A)

a spurious mark -

(i)

that is used in connection with trafficking in goods or services;

(ii)

that is identical with, or substantially indistinguishable from, a mark
registered for those goods or services on the principal register in the
United States Patent and Trademark Office and in use, whether or not the
defendant knew such mark was so registered;
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Because subsequent purchasers or recipients of the goods may be duped and
because of the need to protect the trademark owner's investment in the
quality of the mark and its product's reputation, it is not a defense that
the original buyer was told that the goods were counterfeit, or that the
buyer was actually not confused for other reasons, e.g., because of the
comparatively low price of the fake goods

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Why can't this be applied to fake chips?