* 8 Pin PCI-E Splitter, 12 inch, Woven, Qty 4 Graphics cards benefit from the larger guage sized 18 AWG wire by giving you the ability to transfer more electrical current more efficiently compared to 18 AWG wire. Larger Guage (AWG) wire means higher electricity current carry capacity. 13 amps of power for 18 AWG vs 10 amps for 18 AWG