This model of Wifi antenna is no longer made by Zyxel (Wifi 4), it dates from 2016!
I recommend a Zyxel NWA50AX (Wifi 6) as a replacement. It's more expensive, but more secure, Wifi 6, can do VLAN for Guest etc..
Very versatile. It's a bit more expensive (80 CHF at Digitec), but easy to set up.

Thank you for your answer. Would the D-Link DAP-1360 also be an alternative? Less expensive... I have a room as an office and an internet network that I would like to transform into wifi to be able to access with several computers (max 4).