They actually sell genuine components. I bought a 30pin USB lead for my Samsung tablet, and I use the lead primarily for charging the tablet. The lead I got worked as well as the original USB lead I got with the tablet. I did buy a cheaper USB lead elsewhere before buying this one, and found that it was useless for charging, taking numerous days (yes Days!) to charge the tablet using the original USB charger that came with the tablet. The lead I got from doohickeyhut works like the original lead and will charge my tablet in a couple of hours. This is the second USB lead I've bought from doohickeyhut, and both have worked as described and are as good as the originals. For future USB leads I will definitely check doohickeyhut for a genuine lead rather than look for a slightly cheaper alternative.