It charges your DualSense controllers at 5.1V/1000mA for each charging port, with the LED indicator to light up in orange/blue indicating that the corresponding controller is being charged or fully charged.
The set fits both the disc version and the digital version.
Yes, by using the slots and hooks of each module, you can assemble the modules any way you like.
Yes, with two legs structure, this stand is way more stable than the original PS5 stand.
If you use the horizontal stands only, the height is 4.33 inches. If you use the horizontal stands with the headphone holder, the height is adjustable from 8.26 to 12 inches.