Amazon.com : 20Ft 14AWG 12V DC Extension Cable DC 2.1mm x 5.5mm 5521 Power Supply Adapter Flat Extender Cord,Female to Male Wire for CCTV Security Camera,IP Network Camera,DVRs and More Devices (20Ft) :
$7.08 (Free or Cheap Shipping) 14AWG Soft Silicone Flexible Wire Cable (3m/2-Pack) (3m, 2-Pack, 14AWG) at m.FastTech.com - FastTech Mobile
DC 5.5mm x 2.1mm Power Male Plug Cable with DC8mm Adapter Compatible 14 AWG Wire | eBay