Only $8 shipping for me, so with coupon code it would have been $21.49 shipped. However my order won't go through. I tried paying with CC and with PayPal and the sale fell through in both cases...
Edit: OK, I was able to complete the sale - $21.49 shipped using the coupon code (I've never used cashback yet, so didn't bother). To make the deal go through, I had to due the normal secure checkout, as if paying by CC. They I paid by Paypal towards the end of the sale (as opposed to paying by paypal from the beginning).
Thanks to the OP for making me spend more money. I don't even need this, but it's good to have a spare around. I've used 8-pin connectors on 4-pin motherboards before - the connector just hangs over on one side. It works, if you have the room around the connector. You can also cut off the 4-pin connector from an old or dead power supply and splice it in. They also make 12V molex to 4-pin adapters that work fine. The 8-pin only connector shouldn't stop anyone from using this PSU - you just need to get 12V + ground to 2 pins - not too difficult.