The Ubiquiti UniFi Switch Ultra 42W is a compact, managed Layer 2 Gigabit switch designed for flexible edge deployments where space and power efficiency matter. With PoE++ input and multiple PoE/PoE+ output ports, it enables simple expansion of UniFi devices in offices, retail spaces, and light industrial environments while maintaining centralised UniFi Network management.
🔑 Key Features
Compact 8-port Gigabit Ethernet switch for edge network expansion
Seven ports supporting PoE and PoE+ to power access points, cameras, and IoT devices
Powered via PoE++ input for simplified cabling and installation
Fully managed through the UniFi Network application with VLANs and port profiles
Versatile mounting options for wall, pole, or desktop installations
🛠Technical Specifications
Model: USW-ULTRA
Voltage / Power: Powered via PoE++ input; no external power supply included
PoE Output: 7 × PoE / PoE+ ports, total PoE budget 210W with AC Adapter Input
Switching Capacity: 16 Gbps
Forwarding Rate: 11.9 Mpps
Connections:
Dimensions: Compact form factor suitable for edge deployment
Material / Finish: Durable enclosure designed for flexible installation
Mounting Style: Wall mount, pole mount, or desktop placement
Environment: Indoor use; suitable for protected installations
🎯 Best Used For
Ideal for extending networks in offices, retail locations, classrooms, and edge environments where multiple PoE-powered devices need to be deployed from a single PoE++ uplink without installing a full-sized rack switch.
✅ Complementary Products (Same Brand)
UniFi PoE++ switches or PoE++ injectors to supply upstream power
UniFi WiFi access points such as U6 Lite, U6 Pro, or U7 Lite
UniFi Protect cameras for compact surveillance deployments
UniFi gateways such as UDR, UDM-SE, or UDM Pro Max
UniFi mounting accessories for clean and secure installations
The UniFi Switch Ultra 42W delivers a practical balance of compact design, managed switching, and PoE flexibility, making it an excellent solution for scalable UniFi edge deployments.
