This is a follow on from my talk back November. Which at the GTALUG this evening I gave a small follow up. https://www.youtube.com/watch?v=cwESAjUBuj0 At the end of the original talk I discussed having issue with electrical isolation on the USB serial adapter. I've since solved that with an inexpensive part that's exactly fit for purpose. Below is the parts list: * USB-C to Serial Port UART Board Module Isolated USB to TTL Module 3.3V https://www.aliexpress.com/item/1005001644508314.html * TP-Link Jetstream 10-Port Gigabit Smart Switch with 8-Port PoE+ https://www.amazon.ca/gp/product/B0141JX92G/ * Dupont Crimping Tool https://www.amazon.ca/gp/product/B087QY413W/ * JST-XHP Housings and Connectors https://www.amazon.ca/gp/product/B07MBCLPBK/ * USB C to USB 2.0 A Cables https://www.amazon.ca/gp/product/B01ASXBY62/ * GeeekPi Raspberry Pi 4 PoE HAT https://www.amazon.ca/gp/product/B0833PP65P I also showed off my Build of the Raspberry Pi modular rack, constructed from the design by Uptime Labs. https://uplab.pro/2020/12/raspberry-pi-server-mark-iii/ I have a second one of these I printed and assembled but don't actually need. If someone interested, I'd sell if for $100 to cover the cost of the 5 case fans, steel rod and full spool of filament used in it's construction. -- Scott Sullivan