Ubiquiti Flex Mini 2.5G, (4) 2.5 GbE Ports, (1) 2.5 GbE PoE Input Port for Power,

Ubiquiti Flex Mini 2.5G

SKU: USW-Flex-2.5G-5

Tech Specs: Click Here
Installation Guide: Click Here

Description: Compact, 5-port 2.5G switch that can be powered with PoE or a USB-C adapter.

Features:
•(4) 2.5 GbE ports
•(1) 2.5 GbE PoE input port for power
•Optional powering with included 5V, 1A USB-C adapter

Why Choose This?

The Ubiquiti Flex Mini 2.5G (USW-Flex-2.5G-5) is a compact, affordable 5-port Layer 2 switch delivering 2.5 GbE speeds, perfect for expanding networks in small offices, home labs, or tight spaces without compromising performance. Its versatile powering via PoE input or included USB-C adapter simplifies deployment, while UniFi Network integration provides seamless management, VLAN support, and advanced Layer 2 features like STP/RSTP and port isolation. With a 25 Gbps switching capacity and fanless design, it ensures reliable, low-power multi-gigabit connectivity at just $49.

Key Features

• (5) 2.5 GbE RJ45 ports – Delivers multi-gigabit speeds (2.5G/1G/100M/10M) for high-bandwidth devices like NAS or PCs.
• PoE input on dedicated 2.5 GbE port – Powers the switch via existing PoE infrastructure (44-57V), eliminating separate adapters.
• UniFi Network managed – Integrates with UniFi controller (v8.6.9+) for easy adoption, VLANs, monitoring, and Layer 2 features.
• Compact fanless design – Ultra-small footprint (117.1 x 90 x 21.2 mm, 206g) fits anywhere, operates silently from -20 to 45°C.
• Layer 2 capabilities – Supports 256 VLANs, STP/RSTP, jumbo frames, storm control, and loop protection for robust networking.

Full Specifications

Official Resources: Tech Specs | Installation Guide

Frequently Asked Questions

• Q: Does it support PoE output to power other devices? No, it has PoE input only on one port for self-powering; the other four ports are data-only.
• Q: How do I power the switch? Use the included 5V/1A USB-C adapter or connect PoE (802.3af/at, 44-57V) to the dedicated 2.5 GbE PoE input port.
• Q: Is it managed or unmanaged? Managed via UniFi Network application (v8.6.9+); adopt it in the controller for full Layer 2 features and monitoring.
• Q: What speeds do the ports support? All five ports support 2.5G/1G/100M/10M auto-negotiation for flexible multi-gigabit connectivity.
• Q: Does it have a fan and is it silent? Fanless design ensures completely silent operation, ideal for desktops or quiet environments.