In this project course I have designed a usb hub around the TUSB2046BVFR usb hub controller chip. I have made great efforts towards a successful working design over the term, unfortunately in the end, the usb hub does not function. A list of some of the issues I encounter were poor documentation of preferred parts on the datasheet as well as poor clarity of how layout is to be place. Once the schematic was finished, I moved to layout, where I had to learn how to calculate proper transmission trace pairs for the data lines of each usb port. this has increased difficulty as the upstream usb port had it data lines opposite to the connections on the main IC, which required much thinking to avoid having mismatched lengths, resulting in placing the port on the opposite side of the pcb and running a via pair through the full extent of the board. After layout was completed, I ran into issues with parts which had previously been in stock having run out, requiring a rework on the board to switch out the unavailable parts. Finally after sending the board to production I faced the issue of unexpected shipping issues, resulting in a lead time outside of the term. After finally receiving and assembling the pcb, there wasn't enough time to diagnose what issues were preventing proper operation. I hope to in the future revisit this design and diagnose where it went wrong and design a working version. A case for the pcb was designed and printed, just to finish the project ion a strong note. As for my project requirements as outlined before the start of the course: 1) The usb hub must provide power at 5v +- .1v, with a max current of at least 500mA [uncompleted] 2) The usb hub must be recognized by any computer in 5 seconds or less of any common OS (linux, windows, mac) [uncompleted] 3) The usb hub overall size must be smaller in volume than 125 cms^3 [partial; volume is 182.5 cms^3] 4) The usb hub must be able to support 4 usb ports in use simultaneously [uncompleted] I was unable to meet any of my requirements unfortunately, due to the inoperable state of the pcb. The schematic, layout, and cad file are all posted below