
Re: Support of 4 Tb HDD and m.2 wifi
fitlet2 supports a WiFi module without the need of any extension board.
Also, should you wanted to use a 2.5" drive, you'd require the deep bottom cover for a 4TB hard drive.
You can configure and observe the possible configuration options using the fitlet2's build to order website:
https://fit-iot.com/web/product/fitlet2-build-to-order/