PCIe edge connectors are 1.6 mm thick, use a 1.0 mm pitch (compared to 1.27 mm for PCI), a 1.4 mm spacing between the contact fingers and the same 20° chamfer angle as PCI edge connectors.

OWC sells the 1M2 80G in different versions. Without M.2, you currently pay the manufacturer 219 US dollars plus taxes, ...

Typically available as an external USB module, for desktop computers, the modem may also be available on a PCI Express (PCIe) card that plugs into an empty slot on the motherboard.