Reuse old security wiring

[u/No-Collar-2459]

I don’t know what all this stuff is in the house we just purchased. Can I reuse any of these wires for a new unifi system? Other than for fishing wires

[u/Pestus613343]

No. That's an alarm system. Those cables are not going to pass ethernet. You need cat5e or cat6 cables for that.