Based on this product's specifications, here are some alternatives and similar models
Magnetic Antenna Base DIGITUS RSMA A-DN-70101 (model ADN70101)
Summary description:
Magnetic antenna base DIGITUS RSMA A-DN-70101 (ADN70101) is a mounting accessory designed to hold and position an RSMA-terminated antenna. The magnetic base provides a secure, temporary attachment to metal surfaces and enables easy placement and removal of an external antenna. Suitable for use with wireless equipment requiring an RSMA connection where non-permanent, stable mounting is needed.