Stacking support: Not confirmed; no physical stacking documented in sources reviewed
MAC Address Table Size: 32,000 entries
Packet Buffer Size: 2 MB
Form Factor: 1U rack-mountable, 442 x 325 x 44 mm, 5.1 kg without brackets
Management: UniFi Network 8.0.24+
Operating Temperature: -5 to 40u00b0C (23 to 104u00b0F)
Certifications: CE, FCC, IC (one listing states NDAA compliant)
Curation Review
✔ Pros:Layer 3 switching in a 24-port 1U chassis; 8x 2.5GbE PoE++ ports for multi-gig wireless and workstation uplinks; 400W total PoE budget with up to 60W per port; 2x 10G SFP+ uplinks; 112 Gbps switching capacity and 56 Gbps non-blocking throughput; managed centrally through UniFi Network; list price of $799 USD from Ubiquiti's US store is competitive for L3 PoE++ hardware
✘ Cons:400W total PoE budget is limited if many high-power PoE++ devices are connected at once; No physical stacking documented, so scaling beyond one unit needs separate management; Port breakdown is described inconsistently across retailer listings, so the official Ubiquiti datasheet should be checked; Reseller prices vary widely (about $799 to $951 USD, plus higher regional prices); Independent hands-on reviews with measured performance were not found; Requires UniFi Network 8.0.24 or later for management
Max Power Consumption: 60 W excluding PoE output; 460 W including PoE output
PSU: Internal 550 W AC/DC; DC input for redundant power (RPS)
Layer: L3 (static routing and inter-VLAN routing for local networks; 256 IPv4 static routes; no full dynamic routing listed)
Stacking Support: Not listed in official specifications
MAC Address Table: 16,000 entries
VLANs: 1,000
Packet Buffer: 2 MB
Jumbo Frames: Supported
Form Factor: 1U rack-mount, 442 x 325 x 44 mm; rack depth 400-1200 mm
Weight: 5.1 kg (5.2 kg with brackets)
Operating Temperature: -5 to 40 C; 10-90% humidity, non-condensing
Management: UniFi Network 5.14.12 or later; 1.3-inch touchscreen LCD
Curation Review
✔ Pros:Twelve 2.5GbE PoE+ ports suit multi-gigabit Wi-Fi 6 access points; 400 W PoE budget powers several PoE+ devices at once; Two 10GbE SFP+ uplinks for aggregation or backbone links; 124 Gbps switching capacity with a 2 MB packet buffer and 16,000-entry MAC table; Broad Layer 2/3 feature set including LACP, STP/RSTP, 802.1X, IGMP snooping, DHCP snooping, port isolation and QoS; Optional DC input for redundant power; NDAA compliant; Managed through the UniFi controller ecosystem
✘ Cons:Ubiquiti lists this model as Vintage, so it may be superseded and harder to source with full warranty; PoE is limited to 802.3at (PoE+), with no PoE++ and not compatible with U7/E7 PoE++ access points; The 400 W PoE budget can be exhausted quickly with high-power PoE+ cameras or APs; Per-port PoE is capped at 32 W; Layer 3 is limited to static and local inter-VLAN routing, so larger routed networks need an external router; Stacking is not listed in official specifications; Heavy for its class at 5.1 kg and draws 60 W before any PoE load; Few independent tests verify real-world forwarding or routing performance