The ANEWKODI one on Amazon seems ok. My connectors do look like the ones in the picture. On the mini-ITX motherboards the two connectors are close together, so normal antennas barely fit.

The easy-to-install connectors WR-SMA, WR-SMB, WR-MCX and WR-MMCX are now available from stock without a minimum order quantity. The “WR-SMA Right Angle Bulkhead Jack Cable Connector” is a right-angle ...

“The configurations offer more efficient bandwidth sharing with excellent RF performance up to 9GHz,” according to the company. “The versatile nature of the SMA connector coupled with the small ...

Taoglas Enhances its Advanced Component Offering by Launching new High-Performance 5G Antennas, Miniature IoT Speakers and RF Connectors.