does anyone know which SFP+ module I need to buy to be able to plug in fibre7 directly without a media converter, for example?

Yes

Recommendation code May 2025: 01954042862

Here another referral code for Init7.
28372791774
February 2025

You can order directly from Init7.
Current Init7 recommendation code 2024: 01954042862

Works with Fiber7 (1 Gigabit), but also works with Fiber7-X (10 Gigabit). It is important that the right SFP module is used. You can order this directly from Init7 and they will adapt it to your router. If you are a new customer, the optics and cable are even free, just use the recommendation code 60602764819 :)

Fiber7 (1 Gigabit) is compatible with this product, however it is also compatible with Fiber7-X (10 Gigabit). The use of the appropriate SFP module is of utmost importance. This is something that can be ordered straight from Init7, and they will modify it to work with your router.

The thing looks pretty cool.

Is the delivery coming now?
The date keeps getting pushed back.

If you need a referral code: 12868586795