A new Microsoft wireless charger has reportedly passed through Federal Communications Commission (FCC) testing. This has led to speculation that it may launch alongside the new devices to be introduced at the Surface event tomorrow (October 2, 2019). This would be the first time that such an accessory would be sold under the same brand.
On the other hand, there is no mention of the term "Surface" in this new regulatory documentation. It describes a 5V/2A output, which may translate to a charging rate of 10 watts. This could be considered a rather indifferent specification in this day and age, and may accordingly be intended for compatibility with further Microsoft add-ons, most likely the Surface Pen.
This proprietary stylus is thought to gain wireless charging with its imminent next generation. Then again, it is also possible that the projected Surface 7 Pro and tablet will be capable of Pen-charging themselves. Should this be the case, it will keep them in line with potential competitors such as the Samsung Galaxy Tab S6 and iPad Pro 2018.