UniFi Flex – 5-Port Indoor/Outdoor PoE Switch with Flexible Power Options

The UniFi Flex is a compact, Layer 2 switch designed for both indoor and outdoor use, delivering flexible gigabit connectivity with PoE support. It features four GbE PoE+ output ports and one GbE PoE++ input port for power, providing up to 46W PoE budget when powered with PoE++*.

Offering 20W PoE budget on PoE+ input and 8W when powered by standard PoE, the UniFi Flex adapts easily to different deployment requirements. Its weather-resistant housing and slim design make it suitable for a wide range of environments, from offices and hospitality venues to outdoor surveillance networks.

Seamlessly managed through the UniFi Network application, the UniFi Flex combines reliable switching, versatile power options, and simple integration, making it an ideal choice for extending UniFi deployments indoors or outdoors.

*When powered with a PoE++ switch or a 60W PoE adapter (sold separately).

Tech Specs

Click here for the USW-FLEX datasheet.

Device Specifications
Overview
Dimensions	122.5 x 107.1 x 28 mm
Port Layout	1 GbE RJ45 5 (4 PoE+; 1 PoE++) (1G/100M/10M)
Max. PoE Output	Up to PoE+
Total PoE Availability	46W
Form Factor	Compact desktop, wall, pole
Performance
Switching Capacity	10 Gbps
Total Non-Blocking Throughput	5 Gbps
Forwarding Rate	7 Mpps
Supported VLANs	1,000
MAC Address Table Size	2,000
Layer 2 Features
Egress Rate Limit	✓
Flow Control	✓
Port Isolation	✓
Port Mirroring	✓
Jumbo Frames	✓
Hardware
PoE Ports	PoE+: 4 PoE++: 1
Max. PoE Wattage per Port by PSE	PoE+: 25W
Max. Power Consumption	5W (Excluding PoE Output) 51W (Including PoE Output)
Power Method	PoE++
Power Input Method	PoE
Supported Voltage Range	50—57V PoE
Management	Ethernet
Heat Dissipation (Excluding PoE Output)	17.06 BTU/hr
Outdoor Ready	✓
Weight	230 g (8.1 oz)
ESD Protection	Air/contact: ± 16kV
Ambient Operating Temperature	46W PoE output: -40 to 55° C (-40 to 131° F) 25W PoE output: -40 to 65° C (-40 to 149° F)
Ambient Operating Humidity	5 to 95% noncondensing
NDAA Compliant	✓
Certifications	CE, FCC, IC, Anatel
Software
Application Requirements	UniFi Network Version 5.10.3 and later

FAQs

Q: What is the Ubiquiti USW-Flex and what is it used for?
A: The USW-Flex is a compact, fanless Layer 2 UniFi switch with 5 gigabit RJ45 ports, designed to extend wired network connectivity in home, office, or enterprise environments.

Q: How is the USW-Flex powered?
A: It can be powered via PoE (802.3af) on port 1 or via an external USB-C power source, offering flexible installation options.

Q: Does the USW-Flex support VLANs and network management?
A: Yes, when used with the UniFi Network Application, it supports VLANs, port profiles, and other Layer 2 switching features for network segmentation and monitoring.

Q: Can the USW-Flex operate as an unmanaged switch?
A: Yes, it can function as a plug-and-play unmanaged switch, though full configuration and monitoring require the UniFi Network Application.

Q: Is the USW-Flex fanless and silent?
A: Yes, it operates silently without a fan, making it ideal for offices, retail environments, and other noise-sensitive locations.

Resources

Ubiquiti UniFi Setup Guide for Small Holdings — MS Dist

Cameras & Security Accessories

Ubiquiti UniFi Flex

Ubiquiti G5 PTZ In-Ceiling Mount