# How many NetSenX devices do we need for two sites?

Usually at least two: one agent on a SPAN or TAP port at each site, because each site has its own local traffic. A device is a host running the NetSenX agent, and one agent on a mirror port counts as one device for the whole segment it watches. If a site has several separated segments, such as office, guest Wi-Fi and production, each segment you want to watch needs its own mirror point or agent. Add any servers you want to watch directly with their own agent. A typical two-site company therefore needs only a few devices, which may fit the Free plan's 3 devices or the Starter plan's 10 devices at €49 per month.

FAQ: [Small business monitoring](https://netsenx.com/en/faq/smb) · https://netsenx.com/en/faq/how-many-netsenx-devices-do-we-need-for-two-sites

## Read next

- https://netsenx.com/en/ndr-for-small-business
- https://netsenx.com/en/pricing

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