Ubiquiti US-48-500W UniFi Switch

Ubiquiti US-48-500W UniFi Switch

Overview

The Ubiquiti US-48-500W is a 1U rackmount UniFi Switch designed for mid-to-large deployments requiring high-port-density gigabit switching with substantial Power over Ethernet capacity. This switch delivers 48 Gigabit PoE+ ports alongside dual 1G SFP and dual 10G SFP+ uplink options, making it suitable for enterprise networks, hospitality infrastructure, and campus deployments where powered device density and management simplicity are critical. The US-48-500W operates across universal AC input (100–240V, 50/60 Hz) with a 500W maximum PoE power budget and internal AC/DC power supply, enabling flexible datacenter and remote-site placement.

Key Features

The switch provides 48 Gigabit RJ45 ports with PoE+ support, allowing simultaneous powering and networking of up to 48 endpoints—ideal for IP cameras, wireless access points, and VoIP phones. Two 1G SFP and two 10G SFP+ uplink ports enable scalable connection to core infrastructure or stacked switches without consuming gigabit downlink capacity. VLAN support includes Voice VLAN and virtual network override, essential for traffic segmentation and QoS enforcement. The Ubiquiti US-48-500W integrates seamlessly with UniFi management software, providing centralized monitoring, configuration, and firmware updates across the network. Operating temperature range of −5 to 40°C (23 to 104°F) accommodates both indoor and environmentally controlled outdoor enclosures. The unit is NDAA compliant and constructed with SGCC steel mounting hardware.

Deployment Scenarios

Deploy the US-48-500W as a primary access-layer switch in office buildings, hotels, schools, and campuses where numerous powered devices require centralized management. The 500W PoE budget supports mixed deployments—for example, 30+ PoE+ cameras plus wireless access points on the same switch. Use the SFP+ uplinks to connect directly to 10G core switches or aggregation points, eliminating the need for intermediate fiber-to-copper converters. In distributed environments, stack multiple US-48-500W units through dedicated stacking modules for simplified management and reduced cabling complexity.

Network Integration

Ethernet management via any gigabit port allows out-of-band or in-band administration through the UniFi controller. The switch supports standard VLAN tagging, enabling isolation of guest networks, IoT devices, and camera traffic. SFP+ uplinks support standard multi-mode fiber (MMF) and single-mode fiber (SMF) modules, allowing distance-flexible uplink architecture. Integration with UniFi Security Gateway, UniFi Dream Machine, or third-party controllers provides firewall rules, intrusion detection, and threat management at the network edge.

Installation Notes

The US-48-500W occupies a single 19-inch rack U in standard 19-inch cabinets (dimensions: 485 × 374.6 × 43.7 mm). Ensure adequate airflow around intake and exhaust vents. Connect the unit to a reliable AC power source; use an uninterruptible power supply (UPS) to maintain PoE delivery during mains interruptions. Install fiber uplinks using standard LC connectors on SFP modules; gigabit copper connections use conventional Cat6/Cat6A cabling. Default gateway discovery via UniFi application simplifies initial provisioning without manual IP assignment.

Karl Wilson, Infrastructure Engineer

"The US-48-500W delivers reliable, dense gigabit switching at a rational price point. For environments deploying 30 or more PoE devices per floor or zone, the 500W budget and 48-port configuration eliminate the fragmentation and complexity of multiple smaller switches. I frequently specify this model in education and hospitality sectors where camera rolls and wireless APs must coexist. The 10G SFP+ uplinks scale elegantly without forcing a flag-day upgrade; you can start with 1G fiber and add 10G modules as demand grows. Management through UniFi is straightforward—no steep learning curve for junior staff. Build quality and thermal performance are solid. The Ubiquiti US-48-500W remains a workhorse choice when you need predictable, manageable gigabit density."