USB hub with standalone charging support

Question

Background:

I am a android developer. In some phases of the development process I have to look how the layouts/app looks on different phones. Therefore you can attach all phones to a usb-hub and deploy the changes to all devices simulatinously.

Problem

The company I am working at bought me a (medium-"end") usb-hub that I can use to deploy my changes to all the phones - but most of the time the phones are all empty because they were just laying the in drawer for a while. Keeping them connected to the USB-Hub while the computer is not attached does not charge them sufficiently. The usb-hub is also not capable of charging 4 drained out phone simulatinously.

TL/DR - What I am looking for

I am looking for a Multiport (aprox. 8 port) charger that is capable of:

• charging(!) the phones (plural!) while the computer is not conected
• is able to be used as a USB-Hub
• transfering data with a decent speed (at least usb 2.0)
• in the best case it also charges(!) the devices faster then the mac could while the mac is connected

So far I could only find either good Charger or good hubs. Not both.

Answer 1

Wavlink 7-Port USB 3.0 Superspeed Hub with 48W Power Adapter €25,99

I've had a pretty good experience with Wavlink products in the past. They seem to be good at delivering a premium look and feel without the premium price. It claims to be capable of

Transfer data at speeds of up to 5 Gbps through 7 ports

and

Compatible with the BC 1.2 charging standard, the 7-Port USB 3.0 Hub can charge your devices up to 2.4A each port when being used as a stand-alone charger with no host computer attached

• USB standard Support: 1,2,3.0
• Offline charging up to 5V/2.4A per port
• Power switches and LEDs for each port
• 12V/4A Power Adapter

Oh and by the way, international shipping is free, so that's a nice plus.