ManBearPig
$10 for shipping that little thing?? Wow...
Depends on the retail product packaging, I doubt they will just send the plug loose... USPS priority mail small flat rate box (8-5/8" x 5-3/8" x 1-5/8") is $6.80 to anywhere in US. It may not fit in there though.. I know from just last week or so that a Samsung 850 EVO SSD in retail packaging wont fit in one of those small flat rate boxes. The USPS supply those boxes for free btw.
If the EVGA Powerlink product packaging is too big, the next size up is $13.45 for the medium flat rate box.
They also have a flat rate padded envelope (12.5" x 9.5") which is $6.80 shipping, but only if you use their envelopes. I sent a Samsung 850 EVO in my own padded envelope (same size) through Paypal about a week ago, and it cost $8.40 via priority mail, and that's a discounted rate with Paypal, and to a nearby state.
USPS put their rates up recently, so $9.99 shipping does not appear to be that excessive at all.