Can I use Hetzner Storage box as Kafka storage?

There are chip storage on datacenter I use to my servers - Storage - Hetzner Online GmbH
But this storage has a something restriction, for example Max Concurrent connections restricted to 10. In other case my program has more thread than 10, at least 100.
This is question of internal Kafka structure, how exactly consumer thread mapping to I/O thread to Kafka dataStore - one-to-one, or many-to-one. In first case datastore with restriction of 10 thread can not working with Hetzner Storage box, in other case can working.