UniFi Layer 3 switches support network segmentation by assigning connected devices to separate virtual local area networks (VLANs), helping isolate traffic for security cameras, access points, voice devices, and other network systems. Their Layer 3 switching capabilities support inter-VLAN routing, allowing authorized traffic to move between VLANs without requiring a separate router for those local network connections.

Choose a port count that covers current devices, likely expansion, and uplinks, then match port speeds to the connected equipment, such as Gigabit, 2.5 GbE, or 10G SFP+ links. Review the total PoE budget and the PoE or PoE++ output available on individual ports to support devices such as cameras, access points, and phones without exceeding the switch’s capacity.

Use the SFP or SFP+ uplink ports on a Layer 3 switch to connect access switches, servers, or compatible fiber equipment, using the appropriate transceivers and cabling for each device. Configure the uplink as a routed connection or a VLAN trunk, depending on whether you need Layer 3 network segmentation or Layer 2 access to shared networks.

UniFi Layer 3 switches support rack mounting for network closets and equipment rooms, while select compact models also support desktop, wall, or flat-surface installation. These options fit business, security, and AV environments where installers may need to connect cameras, access points, phones, displays, and other networked devices in centralized or space-constrained locations.