usb-hub-v2
A 4 port USB 2.0 hub, it has a reverse voltage diode in case the computer sends too much voltage and also has decoupling capacitors to protect the other USB ports. There's a USB-A and a USB-C port (Supports USB-C PD) that can be connected to a PC, although only one should be used at a time.
Created by
kwanyeung.chow1 🚀
Tier 4
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kwanyeung.chow1 🚀
submitted usb-hub-v2 for review ago
kwanyeung.chow1 🚀
added to the journal ago
Case design
This is a very simple case, the bottom of the pcb gets glued to the circles at the bottom, then the top can be glued to the bottom of the case via the side.
There are hole that allows the ports to poke through on the side.
kwanyeung.chow1 🚀
added to the journal ago
PCB layout and routing
I placed all the components on the PCB
There's a USB-A and USB-C port on both side, most components are surface mount so it looks cleaner, also it uses less solder.
Most of the USB data pins are differential pairs, unfortunately EasyEDA doesn't like routing differential pairs with vias so I had to route them manually, I tried to keep both traces as close as possible and match their length.
I also added some information about the power ratings of the USB hub on the back.
kwanyeung.chow1 🚀
added to the journal ago
Schematic
I started the schematic, I wanted to build a usb hub that supports both USB-A and USB-C so I made this.
For the reverse voltage protection at both the USB-A and USB-C port, instead of using a schottky, I opted to use a P channel MOSFET in order to minimise voltage drop.
There are decoupling capacitor at every port, I also added a slot to install headers at the 1V8 and 3V3 pins on the IC.
There's also an external 12MHz crystal for more stability.
kwanyeung.chow1 🚀
started usb-hub-v2 ago
2/13/2026 10:04 AM - Schematic
I started the schematic, I wanted to build a usb hub that supports both USB-A and USB-C so I made this.
For the reverse voltage protection at both the USB-A and USB-C port, instead of using a schottky, I opted to use a P channel MOSFET in order to minimise voltage drop.
There are decoupling capacitor at every port, I also added a slot to install headers at the 1V8 and 3V3 pins on the IC.
There's also an external 12MHz crystal for more stability.
2/13/2026 10:07 AM - PCB layout and routing
I placed all the components on the PCB
There's a USB-A and USB-C port on both side, most components are surface mount so it looks cleaner, also it uses less solder.
Most of the USB data pins are differential pairs, unfortunately EasyEDA doesn't like routing differential pairs with vias so I had to route them manually, I tried to keep both traces as close as possible and match their length.
I also added some information about the power ratings of the USB hub on the back.
2/13/2026 2 PM - Case design
This is a very simple case, the bottom of the pcb gets glued to the circles at the bottom, then the top can be glued to the bottom of the case via the side.
There are hole that allows the ports to poke through on the side.