The team Xecuter shared some photos about Xecuter SX Pro / SX OS Assembly Line which were taken inside of the their factory. They also released the forth FAQ for SX Pro.
SX Pro FAQ #4
Q: Is SX OS compatible with firmware 5.1.0
A: Of course. And as we stated before, it will be compatible with the next updates as well. We are offering a future proof solution.
Q: Will the SX OS for people who bought it ‘stand alone’ be delivered before the SX OS for people who bought SX Pro?
A: Not necessarily. SX Pro will be shipped in the days to come to distributors. SX OS will be unlocked a bit after the reviewers get their units (all reviewers receive SX Pro).
So depending on the speed of delivery to your distributor and then to you, SX Pro could come before SX OS stand alone. It probably will be very close.
Q: Why is there – and + symbols engraved in the SX Pro dongle?
Since USB-C devices can be plugged in either way, people are worried if dongle plugged in upside down, the + on left and – on right, and SX label facing down, that the Switch will blew up or get bricked, etc.
A: They are here just for cosmetic reasons. The – symbol is also the LED window.
Q: Yikes, those are two huge caps in render picture? Is that going to taser my Switch, damage my system, or zap me!
A: Super Cap’s actually (super-capacitor), 0.35F 2.7V, given the transport issues with Lithium based batteries SuperCap’s are fast becoming the go to temporary power source.
No zapping ( very low voltage ) and we limit the charge current to ~400mA peak for either USB port.
Q: Huh, two caps, how do they get ‘charged’? Do I have now and then plug my dongle into micro-USB cable to charge it, what happens when it runs out of power? — Why not battery instead? — Does it instead drain my Switch battery, what happens if I leave it plugged in.
A: The SuperCap’s are charged from either usb port ( USB-C or Micro USB ). The caps offer approximately 1 week standby time with enough energy left for one boot, or at least 5 successive boots without the opportunity to auto-charge. Charge to 80% is achieved (automatically) within 1-2 seconds of entry into the Nintendo start menu. We are working reducing that considerably … (see above for why not battery). Because we are powered by s-cap’s we have a very power conscious design.
Leaving the dongle in the console for more than a minute is pointless but will do no harm in any way to the dongle and drain very little battery ( currently we draw ~25mA but will work on reducing that considerably after ~1-2 minutes charge mode).
Q: Can I charge my Switch via dongle?
Using just micro-usb cable, removing the need of needing a proper usb-c cable.
A: Sadly no, our intent for the micro USB port was for charging the dongle and firmware updates, but might be something we will consider for future hardware revisions, thanks.
Q: There been reports of cables, and docks without that bricked the battery charging circuit, are we at risk with SX Pro solution?
A: No, simply because we do not support charging. The dongle uses both USB ports only for receiving charge.