Ubiquiti USW-48-POE UniFi Network Switch

Ubiquiti USW-48-POE UniFi Network Switch

Overview

The Ubiquiti USW-48-POE is a 1U rack-mount managed switch designed for mid-to-large enterprise and campus deployments requiring consolidated Layer 2 switching with integrated Power over Ethernet. This 48-port switch delivers 104 Gbps switching capacity with 52 Gbps non-blocking throughput and a forwarding rate of 77 Mpps, making it suitable for high-density access layer deployments where port count and power delivery take priority over extreme throughput scaling.

Key Features

The USW-48-POE combines 48 x 1GbE ports with 32 PoE+ ports and four 1G SFP uplink ports in a compact 1U form factor. The switch supports a 195W maximum PoE output budget, enabling simultaneous powering of up to 32 PoE+ endpoints—IP cameras, access points, or VoIP phones—without external power injectors. Universal AC input (100–240V, 50/60 Hz) with an internal 240W power supply accommodates global deployment. Management is Ethernet-based and integrates seamlessly with Ubiquiti's UniFi controller ecosystem, supporting up to 1,000 VLAN configurations for traffic segmentation. The enclosure and mounting hardware are SGCC steel, rated for operation between –5 and 40°C. The switch draws 45W excluding PoE output and weighs 4.5 kg without brackets.

Deployment Scenarios

This switch excels in office buildings, retail chains, and small-to-medium campuses where centralized PoE delivery reduces cabling complexity. Access point deployments spanning 20–32 devices benefit from consolidated power management. Mixed IP camera and wireless LAN builds leverage the PoE budget and VLAN isolation for security segmentation. The four SFP uplinks enable fiber connectivity to core switches or distant buildings without additional media conversion hardware.

Network Integration

Ethernet-based management integrates with UniFi's centralized network operating system, allowing unified provisioning, monitoring, and firmware updates across multi-switch fabrics. VLAN tagging and standard Layer 2 protocols ensure compatibility with existing enterprise infrastructure. NDAA compliance and CE, FCC, IC, and Anatel certifications (00593-21-08356) meet regulatory requirements for North American and Brazilian deployments.

Installation Notes

The USW-48-POE installs in any standard 19-inch rack using the included SGCC steel brackets. Port density and 1U height minimize rack footprint. Adequate ventilation and cable management around the rear panel ensure optimal thermal performance. Firmware provisioning occurs through the UniFi controller; factory reset restores management access if configuration is lost. --- **Expert Commentary — Jerry Tildsen, Network Infrastructure Analyst:** "The Ubiquiti USW-48-POE strikes a pragmatic balance between port density and power delivery. For access layer deployments where PoE endpoints outnumber uplinks, the 195W budget and 48-port form factor eliminate multiple switch cascades. The 52 Gbps non-blocking throughput is sufficient for aggregated access traffic in most enterprise LANs; oversubscription at the access layer is normal and acceptable. The four SFP uplinks provide fiber flexibility without forcing a dual-switch topology. If you're scaling beyond 96 PoE ports or require higher oversubscription ratios, step up to Ubiquiti's core-class platforms. Otherwise, the USW-48-POE delivers solid port efficiency and straightforward UniFi integration at mid-market price points."