Overview of three hubs for mobile devices

Overview of three hubs for mobile devices
1. Hub card reader for iPhone-iPad with lightning connector
Price at time of purchase 7.55USD
Link to the product in the store
Appearance

In the presence of a hub for 3 USB 2.0 ports, card reader SDHC, MemoryStick, MicroSDHC, MemoryStick M.2. There is also a connector for additional power and a USB-DC wire for this.
The shape is a rectangular bar with dimensions 5x7.5 cm, 2.5 cm thick. The solution is not very compact, but you can use it.
Tested only when connected to iPad mini 2. Memory cards connected to the hub are automatically detected by the image import program.
To work with flash drives and hard drivesjailbreak and iFile manager. Successfully managed to copy about 20 gigabytes of RAW photos from a memory card to a connected hard drive, copying time about 10 minutes.
Disassembly
Insides

For a breakdown, it is necessary to peel off the metal decorative plate and gently pick up the lid around the perimeter, it rests on the round guide pins, I still broke one.
Inside are two separate boards interconnected. On the first board with USB ports there is a hub, on the second card reader. Installation is quite neat, although the textolite on the boards is already very thin.
System Information
Additional Information



The hub is based on the Terminus Technology chip,Alcor chip reader All ports are functional in the hub, the card reader has only one of the possible options for a memory card, and two or more cards cannot be connected at the same time.
As a result, I put a solid four for the hub for the quality of work and work.
2. OTG hub card reader for Android phones and tablets
Price at time of purchase 5.57USD
Link to the product in the store
Appearance

In the presence of a hub for 3 USB 2.0 ports, card reader SDHC, MemoryStick, MicroSDHC, MemoryStick M.2. And also there is a connector for additional power, the USB-DC wire was missing from the kit.
The shape of the hub is square, about 1 cm thick. Quite compact for constant carrying.
Work speed

Tested when connected to a Xiaomi RedRice 1S phone. The read / write speed from memory cards to a USB flash drive and hard drive was about 10 megabytes per second.
Disassembly
Insides

To disassemble, you need to peel off, bend the clipcovering cable. After that, gently pry one of the body halves around the perimeter, it rests on the round guide pins, as in the first case, I still broke one pin.
System Information
Additional Information


The fee inside is one. The hub, as in the first case, is based on the Terminus Technology chip, and the card reader on the chip is from MOAI. All ports of the hub work simultaneously, the card reader has only one of the possible options for a memory card, two or more cards cannot be connected at the same time as in the first case.
Hub Feature in Connector Implementationadditional power is that when it is connected, power is supplied not only to the ports of the hub, but also to the phone itself. Therefore, it was decided to unsolder the auxiliary power connector completely.
The hub itself in the version for Samsung Galaxy phones and withXiaomi did not work. It only earned by re-soldering the OTG tail from the number 3 hub. The site has an overview of about the same hub, outwardly it is almost the same, but inside the board is different, although the component base seems to be the same.
3. OTG hub with two USB ports for Android phones and tablets
Price at time of purchase 3.12USD
Link to the product in the store
Appearance

The hub has a square miniature body 3x3 cm, a thickness of about 7mm. On the one hand there is an OTG port for connecting the phone, on the other two USB ports and a micro USB port for connecting additional power.
Work speed

The phone normally recognized the USB flash drive and hard drive connected to the hub. But the speed was very disappointing, about 0.5 megabytes per second for reading and writing in any direction.
Actually, after testing this hub, I had a desire to disassemble it and two others. The reason was the suspiciously low reading speed of a flash drive connected to the phone through a hub.
Disassembly
Insides

Dismantled, horrified design. I decided to solder a regular USB instead of the OTG connector and check the hub on the computer. The very first connection dispelled all doubts. The hub turned out to be USB 1.1, respectively, low speed was a consequence.
Inside the hub, a miniature motherboard with a framelesscompound hub chip. Apparently the cheapest solution possible, manufacturers are trying to sell illiquid chips, shoving them into such crafts.
System Information
Additional Information


When connected to a computer, the hub was recognized asGenesys Logic, with a speed of 12 megabits per second, this is our USB 1.1. I did not test further, I will use it for spare parts for assembly from the hub number two of the universal computer-android-iPad. Soldered three different tails.
In summary, the hub number 1 is overvalued in value. Hub number two is adequate, but it’s necessary to take the version not for Samsung. Hub three, outright garbage, take only as a source for spare parts and no more.
I do not impose my opinions on the purchase of these products to anyone, I just want to fill the information vacuum in this area on the site. Enjoy the shopping!
Koteiko