The charger is not much larger than a standard iPad charger but is rated for over 2x the power of one. Throughout my testing I was not able to get 2.4A out of a single port but I was able to get a constant 2.35A @ 4.92V which is within reason for the specs of the charger. It had no problem charging two iPads and was able to charge my Nexus 6 at 2.1A. The output voltage sat at 4.92V when under a load and would quickly drop to 0V with no load which is exactly how it should be.
Overall this is a very capable charger that worked consistently throughout my testing. The included cable is well made and a nice addition to a great charger. If you are in the market for a two part charger I recommend taking a look at the Infinilla.
If you are interested in this charger it can be found here.