Which PCIe cable would work for my PSU?

[Drakshadow]

So I have an Antec EA750 (http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=163) and as you can see in the pictures, there is a red modular port for an 8-pin PCIe connection. I have a GTX 780 Ti that uses two 8 pin connectors. I only have one 6+2 pin already and lost the modular 6+2 one. So I was wondering, what would be a good replacement? Can it be just any 8-pin to 2+6 pin PCIe cable like this one: http://www.amazon.com/Silverstone-Tek-Extension-Connector-PP07-PCIB/dp/B00B46XJ7K/ref=sr_1_14?ie=UTF8&qid=1427418341&sr=8-14&keywords=PCIe+8-Pin+to+6%2B2-Pin+Cable?

 

[Dark Lord of Tech]

So I have an Antec EA750 (http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=163) and as you can see in the pictures, there is a red modular port for an 8-pin PCIe connection. I have a GTX 780 Ti that uses two 8 pin connectors. I only have one 6+2 pin already and lost the modular 6+2 one. So I was wondering, what would be a good replacement? Can it be just any 8-pin to 2+6 pin PCIe cable like this one: http://www.amazon.com/Silverstone-Tek-Extension-Connector-PP07-PCIB/dp/B00B46XJ7K/ref=sr_1_14?ie=UTF8&qid=1427418341&sr=8-14&keywords=PCIe+8-Pin+to+6%2B2-Pin+Cable?

That's an extension cable.

 

[Drakshadow]

So I have an Antec EA750 (http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=163) and as you can see in the pictures, there is a red modular port for an 8-pin PCIe connection. I have a GTX 780 Ti that uses two 8 pin connectors. I only have one 6+2 pin already and lost the modular 6+2 one. So I was wondering, what would be a good replacement? Can it be just any 8-pin to 2+6 pin PCIe cable like this one: http://www.amazon.com/Silverstone-Tek-Extension-Connector-PP07-PCIB/dp/B00B46XJ7K/ref=sr_1_14?ie=UTF8&qid=1427418341&sr=8-14&keywords=PCIe+8-Pin+to+6%2B2-Pin+Cable?

That's an extension cable.

Oh goodness, thank you for telling me. Do you have any recommendations as to where I can buy what I am looking for? I've tried the local PC stores and they don't have any. I did find this one: http://www.moddiy.com/products/Antec-Modular-PSU-Sleeved-PCIe-8%252dPin-to-6%252b2%252dPin-Cable.html but it's pretty expensive. Do I have any other choice?