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
Operating Temperature: 0-40 C (intake); 0-28 C (exhaust on 9332D-GX2B)
Curation Review
✔ Pros:Very high density of 400G ports in a compact fixed chassis (up to 64x 400G in 2RU on the 9364D-GX2A); Full-duplex switching capacity up to 51.2 Tbps with 8.35 Bpps forwarding on the largest models; Flexible port breakouts (4x10G, 4x25G, 4x50G, 4x100G, 2x200G) allow one platform to serve mixed-speed fabrics; Wire-rate MACsec on selected ports and AI/ML-ready congestion features (PFC, ECN, AFD); Supports both NX-OS and ACI (spine and leaf) modes with deep L3 routing and segment routing (SR, SRv6); Large forwarding tables on GX2B models (2M IPv4 LPM and host entries) and 120 MB packet buffer
✘ Cons:No public Cisco list price; pricing requires a sales contact or partner quote, and the reseller prices found vary widely; Optics and transceivers are sold separately and must be checked against the Cisco optics compatibility matrix, which adds significant cost; High power draw on the 2RU models (typical 1380 W, max 3124 W), so power and cooling planning is needed; No stacking, so fabrics rely on vPC or VXLAN designs that add configuration complexity; Only 2x 1/10G SFP+ ports on every model, so legacy 1G/10G access or uplink needs require breakouts or extra hardware; Full-scale 400G port density is aimed at data center and AI fabric deployments, which makes the platform poorly suited to small enterprise or access-layer use