• What does EVGA mean by "return the original accessories"? I know they aren't referring to posters and the like, but the issue is, I don't actually remember all of what came with the card. Did an HDMI/DP cord come with it? Can't remember. I have all of the original parts, but because I'm a huge computer geek, I also have a ton of other parts all over the place as well. I can't be sure whether or not the cords I have lying around are the ones EVGA gave me or not. I'd hate for my step-up to be rejected because of something as insignificant as this.
• How should you package the card if you have the original box, but not the original packaging? I haven't actually shipped something in the mail for a very, very long time. Can I just buy packing material and try to keep it reasonably safe?
• How can I ship the card back as fast as possible (US residents)? Which company should I use (if any - maybe just USPS)?

EVGATech_RayH
Thank you for the questions.
For original accessories, that would be mostly the dual 6 pin PCIE to 8 Pin PCIE adapters. DP to HDMI adapter would only come with a GTX 1080 Ti Founders Edition card. If you are not able to locate those adapters, we would not deny the Step-Up. We are more concerned with the card arriving safely.
That brings us to packing. If you have the plastic clamshell and retail (thin cardboard) box for the card, please put the card in both then put those in a larger shipping box with at least two inches of additional packaging between the retail box and the shipping box.
As for couriers, any is fine, we just recommend that you purchase full insurance as the package can be lost or damaged in transit.
Couriers like UPS and Fedex offering boxing services and taht may be a good option if you do not have a good shipping box and packing materials.
 

Hoggle
If you do not have the clam shell I would contact support for instructions. Foam would not be good since it can carry an electric charge.