The two pack of 6.6Ft long micro USB fast charging cords is perfect with multiple people using the same chargers. I gave one to my fiance and I am using one myself.
I love that they are sturdier than regular charging cables and they're long enough I can set my phone wherever I need to while it's charging. They do charge fast combined with the fast charging wall plug ins that i recently purchased.
Only issue is the rubber piece wiggles where the cable meets the rubber piece that's connected to the USB and micro SD parts. My fiance had a cable made like these a few months back and that piece was wiggly and ended up coming loose. Personally, we just added a little electrical tape to hold that piece down, stop it from wiggling. They really should do something to prevent that during manufacturing because these cables really are very thick and sturdy. It's just that one piece that isn't that sturdy. That's why I give this product 4 stars instead of 5. The only reason I didn't give it less is the problem could easily be fixed and the rest of their claims are absolutely true!