I picked up this 30 ft. 8mm extension cable to give myself more room when placing my Boulder panel in the sun while the Yeti stays in the shade. The 16 gauge cord feels solid and the 8mm input and output connect cleanly to my panel and power station with no wiggling. It is exactly what I needed for a 100-Watt setup where the built-in cable was just too short. Nothing fancy, just a reliable extra 30 feet that does the job.