OTG hub with add. powered or when you have a tablet with one microUSB

The story of how difficult it was to connect4g modem, flash drives and mouse to the tablet, and even do not let it run out. Dismantling, tests of springs, Oriko cable, a good thing, I recommend, not p. 18. All under the cut)
Hello! Today on the review mcroUSB-OTG hub with additional power. The review on it was already on the muse, but very brief, I will try to supplement it. It all started with the fact that I gave my parentsPrestigio Visconte Quad tablet (8 ”, Intel Atom Z3735G, 1GB RAM, 16GB ROM, Windows 8.1 \ 10). It was a windows tablet that was needed so that the owners were as comfortable as possible to use, as in general on their laptop. I bought the tablet from my friend’s hands, so the package bundle was far from the original: some kind of frivolous 1A charging and the microUSB cable was the first one that came to hand. As a result, during active use (wi-fi, online video, bluetooth mouse), the tablet was discharged while being charged. Moreover, the modem connected via an otg cable 4g ​​did not start, it either appeared in the system, or again fell off at the stage of installing firewood. Thanks to the community on w3bsit3-dns.com, I found out that the modem stupidly lacks amperage. A whole microUSB is dedicated to the problem of survival topic. And I began to make cables with additional power according to w3bsit3-dns.com schemes.
Scotch Lock Scheme

Option with a hub

Everything worked, the modem started, but usesuch cables were inconvenient, and the design itself did not last long. It was decided to kill all birds with one stone to purchase a factory version and the choice fell on the Acasis H-027. I immediately liked its austere design and the modest, but original Acasis label, which looks like if you had Asus written there, I would not doubt it at all. I chose the cheapest lot at that time and after 37 days received it. There were no instructions in the kit (although some are put). All packaging is a bubble and a bag.

The device can operate in three modes:
1. Charging only
2. otg + charge
3. Only otg
A switch is provided for switching between them.
On my tablet, these modes worked like this:
1. otg + charge
2. otg + charge
3. Only otg
The body of the device consists of two halves, fastened by the thorn-groove method. When disassembling, the spikes suffer and fall off heroically. Everything is clean and tidy inside.

The hub is controlled by the fe 1 chip.1s, very cheap, it can be found in many usb 2.0 hubs with ali, from very solid models to copies that literally fall apart in your hands. Often can be found in inexpensive Chinese tablets.

The indicator light indicates that the power is connected. Implemented is not very sensible - just a hole in the case.

Otg-mode works flawlessly, I didn’t take measurements of copy speeds from drives, everything is normal there. Otg + charge mode with Orico colorful 0.5m cable
with three flash drives

with screw and flash drives

Everything is correct with a 4g modem too. Mostly I use a Robiton memory and a 2m Orico microUSB cable to power the tablet and hub.

In the maximum possible option: memory + 2 meters of cable + hub with screw, modem and mouse, the tablet is slowly but charging, otg works i.e. the hub fulfills its purpose. Nevertheless, we will take measurements.
without a hub with a load of 1A

with a hub and 1A load

with a hub and a load of 2A

In my opinion, losses are within acceptable limits. Both otg and charging work well. I strongly recommend for owners of tablets with one microUSB.