This message was posted on behalf of Intel Corporation
All of our current M.2 adapters use the same antenna connectors.
We also have the Intel® Dual Band Wireless-AC 8265 Desktop Kit which already includes full and half height brackets with external antennas:
Product Brief: Intel® Dual Band Wireless-AC 8265 Desktop Kit
Requirements for the Intel® Dual Band Wireless-AC 8265 Desktop Kit
This is the antenna information we have publicly available:
The M.2 form factor Intel® Wireless Adapters use the standard 2x2 mm size RF micro coaxial receptacle (connector) with an outer diameter of 1.5 mm. Specific plugs should be selected to suit the assembly allowable mating height and cable diameter. Refer to the PCI-E M.2 Specification for the minimum requirements of the compatible RF connectors and mating plugs.
Good keywords to search for this parts online are "M.2 wireless antenna" or "NGFF antenna." The antennas on the second link you shared should fit.
Now, the Intel® Wireless-AC 9560 won't work on your system as this is a special type of adapter with very specific requirements, they are only compatible with systems designed with the CNVi. However, the Intel® Wireless-AC 9260 may be compatible, as it is a standard M.2 adapter.
We always recommend validating hardware compatibility with your computer manufacturer.
- What Are the Integrated Intel® Wireless-AC (CNVi) and Companion RF (CRF) Module?