I am making this thread because of the large number of people who are unsure if their card is real or a clone.
From the official Gateway team:
Also note that some real cards will have the Gateway logo written in black whereas other real cards will have the logo slightly tinted blue. Same goes for spring loaded micro sd card slot, some have it, others don't. The only sure way to tell is from pin size, as above.
What can a clone card do and not do? The fake Gateway cards were working fine with all versions of the official Gateway firmware until yesterday when Gateway released a new version called Omega to private beta testers (which has since been leaked).
On attempting to run Omega firmware with a clone card, you will be presented with either "Please enter the red card" (or something similar), or the update will fail very early on.
Gateway recommends to:
Quick Check

From the official Gateway team:
You can visually inspect if you have a clone card by looking at the back of your Gateway 3DS Red Card, and looking at the middle pin on the bottom. If the middle pin is shorter than the other pins, then you have received a clone card.
Also note that some real cards will have the Gateway logo written in black whereas other real cards will have the logo slightly tinted blue. Same goes for spring loaded micro sd card slot, some have it, others don't. The only sure way to tell is from pin size, as above.
Symptoms
What can a clone card do and not do? The fake Gateway cards were working fine with all versions of the official Gateway firmware until yesterday when Gateway released a new version called Omega to private beta testers (which has since been leaked).
On attempting to run Omega firmware with a clone card, you will be presented with either "Please enter the red card" (or something similar), or the update will fail very early on.
What to do?
Gateway recommends to:
communicate with your reseller to receive a original replacement because this is out of our control.
Furthermore, we only recommend purchasing Gateway card from official resellers listed here to ensure they are 100% original products that will support and this and future updates.