So im trying to order this $5 motherboard cable i need and the site wont let me buy it because when i enter my visa card info it says the authentication failed message so i tried my Paypal and it let me go a step further but just said transaction failed after the review order details screen. I tried a different card and it didn't work either. I've double checked all the billing and shipping info and still have no luck. It's the last piece i need for my computer so i'd just like to be able to get it.