It’s just the regular laptop mainboard / motherboard used in Framework laptops. They feature non-soldered storage and non-soldered ram, as part of being repairable and customizable. The ssd / storage is normally connected through the M.2 slot. Note that it is not recommended to use a Storage Expansion Card for your OS.
Yes, zero storage if you do not add any. There is no soldered storage, no included ssd. You need to attach some type of storage. What storage (SSD) parts are compatible with the Framework Laptop?
There is also no soldered RAM, no included RAM. Same for wifi and the 3.5mm audio jack board. If you need wifi, you’ll need a wifi card and antenna. If you need a 3.5mm audio jack, you’ll need the audio jack board. See here for links to the parts [SOLVED] Cooler Master case antenna? - #3 by MJ1 The coolermaster case also has holes for RP-SMA antenna jacks, so you could attach external antennas. You would need a U.FL to RP-SMA cable for that. Framework doesn’t sell one, but they are easily available elsewhere.