100% Factory Tested, 50 Micro Inch Gold-plated contacts. Low Profile boots for high-density applications. No width wasted on boot. Backward compatible with all lower rated category components. Constructed with Ultra Flexible, EZ release, Snag Free Strain relief. Stranded bare 24 AWG copper wire. Safety: UL listed with 94V-0 rated plugs, CSA, CMG, FT4 Flame rated.