Ubiquiti UniFi Flex (USW-Flex)

The UniFi USW-Flex is a compact 5-port managed PoE switch with 4 PoE output ports, 46W total power budget, and a weatherproof, fanless design—ideal for indoor and outdoor UniFi device deployments.

Here are the detailed specifications for the UniFi USW-Flex (non-2.5 GbE version) from Ubiquiti:

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🔌 Ports & Power

• 5 × 1 GbE RJ45 ports:
  • Port 1: PoE input (802.3af/at or 802.3bt) delivering up to 60 W via injector or PoE++ switch
  • Ports 2–5: PoE output, auto-sensing 802.3af (up to 25 W each)
• Total non-blocking throughput: 5 Gbps
• Switching capacity: 10 Gbps

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⚡ Power & PoE Budget

• Max host power: ~5 W (device only)
• Total PoE output: ~46 W when powered via 60 W PoE++ injector or switch
• Per-port PoE limit: 25 W maximum

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🔄 Layer 2 Features

• Supports up to 1,000 VLANs, egress rate limiting, flow control, jumbo frames, port mirroring, IGMP/broadcast storm control, port isolation
• Fully manageable via UniFi Network Controller (version 5.10.3+)

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📐 Hardware & Environmental Specs

• Dimensions: 122.5 × 107.1 × 28 mm (4.8 × 4.2 × 1.1″)
• Weight: 230 g (8.1 oz)
• Fanless, weather-resistant design; mounts horizontally, vertically, or on poles
• Temperature tolerance:
  • Up to 55 °C with 46 W PoE output
  • Up to 65 °C with 25 W PoE
  • Rating: -40 to +55 °C ambient (or +65 °C at reduced load)
• ESD protection: ±16 kV air/contact
• Certifications: CE, FCC, IC; NDAA compliant

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🧾 Summary Table

Feature	Specification
Ethernet Ports	5 × 1 GbE (PoE‑in + 4 PoE‑out)
Switching	10 Gbps / 5 Gbps / ~7 Mpps
PoE Output Budget	Up to 46 W total, 25 W/port
VLANs & L2 Features	VLAN, QoS, port isolation, more
Power Method	PoE++ input (44–57 V DC)
Size & Weight	122.5×107.1×28 mm; 230 g
Operating Temp	–40 °C to +55 °C / +65 °C
Management	UniFi Network Controller 5.10.3+
Certifications	CE, FCC, IC, NDAA

  Datasheet