You can connect several of these devices to each other using the SFP ports (ports 25 and 26), but these SFP ports only support 1 Gbit/s connections. This means that you can only use 1G SFP modules for the connection between the switches, not 10G SFP+ modules such as the UACC-DAC-SFP10-0.5M, which is designed for 10G. Both ends of the connection must therefore have 1G SFP modules.
Your plan with the UniFi Dream Machine Pro and two UniFi Switch 24 PoE is basically possible, but the connection between the switches via SFP must be made with 1G SFP modules, not with 10G Direct Attach cables.
The ports of the Ubiquiti UniFi Switch 24 Poe (USW-24-POE) are equipped with PoE+ (Power over Ethernet Plus). Of the 24 RJ-45 ports, 16 are configured as PoE+ ports, which can deliver up to 32 watts per port and 95 watts in total.
You're absolutely right. Thank you for pointing this out. We will be happy to pass this on internally to the relevant department and hope that it will be removed as soon as possible.
As far as I understand it, the switches are at least silent. We have several in use and have never noticed any. Unifi explains the new cooling method well on their website. I would take an additional look there.
The Community is for enquiries about ownership and use of the products.
For all other questions, please contact customer service.
In addition, prices are based on supply and demand, suppliers and availability of goods. For these reasons, prices may differ and vary. As you can see here, this product is not in stock at all at the moment.
When the availability is unknown, it means that we are out of stock and are waiting for information about the possible supply. As soon as we have more details, we will update the delivery time.
Now this question is quite funny :D have a look at the Cloud key it creates a complete network map (unfortunately only of unifi products) so you can't mix the switches but in itself it shows you all the info what is connected on which port. But only via a cloud key or local unifi controller server.