# Reference Design Library This repository contains reference designs of PCB to be used as a base for other projects. ## Designs [3.5" Hard Drive 50-pin SCSI PCB](3.5%20Hard%20Drive%2050-pin%20SCSI%20PCB)\ [Connector Shield for Macintosh II-Family Computer \(aka NuBus and PDS Card bracket\)](Connector%20Shield%20for%20Macintosh%20II-Family%20Computer)\ [Macintosh Portable RAM Expansion Card](Macintosh%20Portable%20RAM%20Expansion%20Card) ## License Creative Commons License Reference Design Library by Alexandre Marcoux is licensed under a Creative Commons Attribution 4.0 International License. ## Community For more great retro hardware projects and a great community check out: [Tinker Different](https://tinkerdifferent.com/) Join us in #skunkworks on [Discord](https://discord.gg/GKcvtgU7P9) to help make retro solutions available to all. [Discord Open Retro SCSI skunkworks](https://discord.gg/GKcvtgU7P9)