The Ubiquiti UniFi USW-Flex is a compact, managed Layer 2 Gigabit switch designed for both indoor and outdoor network expansions. If you need to install multiple IP security cameras, wireless access points, or VoIP phones in a location where mains power outlets are unavailable—such as ceilings, external walls, or remote outbuildings—this switch provides a neat, single-cable solution.

By running just one high-quality ethernet cable from your main network switch to the USW-Flex, you can split that connection into four distinct, power-delivering ports without needing a local power supply.

Key Features & Practical Benefits

• Power Pass-Through Operation: The switch requires no mains plug. It is powered entirely via the incoming ethernet cable (PoE input), passing that power along to down-stream hardware.

• Weatherproof Enclosure: Built with a durable, weather-resistant housing that operates in extreme outdoor temperatures ranging from -40°C to 65°C.

• Flexible Mounting Options: Packaged with versatile mounting accessories, allowing for secure installation on walls, timber posts, scaffolding poles, or magnetic metal surfaces.

• Centralised UniFi Management: Monitored and configured through the standard UniFi Network software. You can manage VLANs, check port speeds, and remotely power-cycle frozen cameras without climbing a ladder.

Power Budget Allocation (Crucial for Setup)

Because the USW-Flex relies on the power it receives from your upstream switch or PoE injector, its total available power output depends on that input source. Before connecting your hardware, verify your power budget using the reference table below:

Installation Tip: If you are installing this switch in an open outdoor area exposed to persistent driving rain or high winds, we strongly recommend housing it inside the optional UniFi Switch Flex Utility enclosure for heavy-duty weatherproofing and clean cable management.

Technical Specifications

• Dimensions: 122.5 mm x 107.1 mm x 28.0 mm

• Weight: 230 grams

• Network Ports: 5 x 10/100/1000 Mbps RJ45 Ports

• PoE Input: 1 x 50V/60W PoE++ Port (Port 1)

• PoE Output: 4 x 802.3af PoE Ports (Ports 2 to 5)

• Max. Wattage Per Port: 15.4W

• Surge Protection: Air/Contact: ± 16 kV

What is in the Box?

• Ubiquiti UniFi USW-Flex Switch

• Outdoor Cable Cover / Shield

• Wall Mounting Plate

• Pole Mounting Bracket

• Magnetic Mount Strip

• Screw Pack and Nylon Zip Ties