Just got these and tested them and both chargers and cables worked fine.I compared charging with an OEM/APPLE 20W charger and the rates seemed the same.Their output rating at 9V is the same as Apple's.These chargers do run warmer than Apple's but I would not say hot.Like the Apple charger, they do not have folding prongs for travel but that probably makes them more reliable over time.Works fine with 12.9" iPad Pro 2021I would have given this a 5 star, however… I purchased 2 of these on April 15 th. Of this year (2022). One of the 20W USB C Fast Charger’s stopped charging my new Airpad 5th gen after just 4 months on Sept 1 st. I have narrowed the issue down to the charger, not the cord, and not my power outlet. One would expect it to last longer. Will you replace it please? Other than that, it works great, and charges fast. I like the long cord.Just like the original equipment.Used it to charge Apple iPad. Price was 1/4 of what Apple was charging and it works fine.I recently purchased an iPhone XR from the Apple store. During the purchase the salesman informed me that it would not come with a charging block, and the charging cable is a USB-C cable. This was my first time hearing of this, but he said they sold the block I would need. I went ahead and bought the one they had to have one but it was $20!!!! For just the block!!!! I had also bought a phone for my daughter and I told her I would check Amazon because they had to have some more affordable options! And of course they did and I found this great 2 pack! Not only is it the blocks, but it is also the cables and they are 6 feet long instead of the 3 feet that came with the phone! And to top all of that off I paid the same price for this 2 pack that I paid for the one block at the store! Before I wrote this review I also tested the speed because apparently these blocks charge faster and they absolutely do! My phone was at 65% and within a few minutes it was at 90%. These were definitely worth the money! I rarely leave reviews but I do when I come across a great product for a great deal!!! Also it does say iPhone 12 in the title but like I said I have an XR and it works great for it!The cord and charger work great and facilitate quick charging of my iPhone. Love um.I'm not entirely convinced that these are Apple certified. I unpackaged and started using this morning in my home office, which can be very quiet and I can hear a little chirp no matter if I plug them into a power strip or directly into the wall. I tried both in the 2-pack and the other has a different tone in it's chirp but does still make noise. I was hoping to use the other on my nightstand but the noise will drive me crazy while I'm trying to sleep.