This is a 4 port USB hub for Raspberry Pi B+, Raspberry Pi 2 B, Raspberry Pi 3 B; provides more USB capability to your Pi, what's more, it features USB to UART converter for easy serial communication.
It can work with various versions of the Raspberry Pi.
There are two micro USB ports on the USB HUB HAT. Only the "USB HUB" (but not "USB to UART") connector is used for USB expansion. You have to attach the USB HUB HAT to a Raspberry Pi B+/2B/3B with a USB cable although the module can be attached to a Pi Zero W with the Micro USB connector. If you cannot access your Raspberry Pi using serial connection, try to enable the serial option in "sudo raspi-config".
What's on Board:

Manufacturer BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
Responsible person BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
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A small USB 2.0 FS hub that allows you to disable individual devices connected to its USB ports, as well as a visual evaluation of the number of devices enabled. It has a built-in connector for the external power supply, so it can act as an active hub. Cable with a length of 40cm, 7 USB sockets
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