Your Upgrade to 2.5G: The UniFi Switch Flex Mini 2.5G
Are you ready to release the handbrake in your Network? The Ubiquiti UniFi Switch Flex Mini 2.5G is your straightforward entry into the world of Multi-Gigabit Networks. With five full 2.5-Gigabit ports, it is the ideal solution for connecting modern hardware such as fast NAS systems, workstations, or the latest WiFi Access Points without compromise. Forget the 1-Gigabit limit and experience how fluid and responsive your Network can truly be. This small powerhouse is the perfect, high-performance core for your demanding home or office Network.
Maximum Flexibility: Power Supply via PoE Injectors / Power Supplies or USB-C
Ubiquiti knows that every installation is unique. That's why the USW-Flex-2.5G-5 offers you two smart options for Power Supply. Do you already have a PoE Injectors / Power Supplies switch in use? Perfect! Simply connect the Ethernet Switch to Port 1 and power it directly via the network Cabling (PoE In). Alternatively, use the convenient USB-C port and the included power adapter. This flexibility allows you to place the Ethernet Switch exactly where you need it – whether there's only a network cable or a power outlet nearby.
Silent Perfection: The Fanless Ethernet Switch for Your Office
Nothing is more annoying than a constant hum in the background. The UniFi Switch Flex Mini 2.5G was developed with a passive cooling concept and is completely fanless. This means: zero noise emission. It performs its work absolutely silently, making it the first choice for direct use at the workplace, in the living room, home office, or even in a sound studio. Enjoy maximum performance without acoustic distraction.
Full Control with the UniFi Network Controller
Although the Ethernet Switch works as a simple plug-and-play device right out of the box, it only unfolds its true potential in combination with the UniFi Network Controller. Start the adoption process and you immediately have access to a powerful set of management tools. Configure VLANs per port, set up Port Mirroring for network analysis, activate Storm Control to protect against broadcast storms, or monitor traffic – all centrally and clearly from a single dashboard. This Network Ethernet Switch gives you the control you expect from professional hardware.
Strengths & Notes at a Glance
- Pro: Compact and affordable entry into the 2.5-Gigabit world.
- Pro: Extremely flexible Power Supply via 802.3af/at PoE Injectors / Power Supplies or USB-C.
- Pro: Absolutely silent operation thanks to passive, fanless design.
- Pro: Seamless integration and management in the Ubiquiti UniFi ecosystem.
- Pro: Comprehensive Layer 2 functions including full VLAN tagging.
- Note: Does not have a PoE Injectors / Power Supplies output (PoE Out) for powering other devices.
- Note: A running UniFi Network Controller is absolutely necessary for full functionality.
Specifications & Features
| Manufacturer: | Ubiquiti |
| Model: | UniFi Switch Flex Mini 2.5G |
| Manufacturer Part Number (MPN): | USW-Flex-2.5G-5 |
| EAN: | 0810084696040 |
| Product Classification: | Managed Layer 2 Ethernet Switch |
| Form Factor: | Desktop, compact |
| Dimensions (W x D x H): | 117.1 x 90 x 21.2 mm |
| Weight: | 206 g |
| Housing Material: | Polycarbonate |
| Color: | White |
| Cooling: | Passive (fanless) |
| Network Interfaces: | 5 x 2.5 GbE RJ45-Ports |
| Supported Speeds: | 10/100/1000/2500 Mbps |
| Switching Capacity: | 25 Gbps |
| Total Non-Blocking Throughput: | 12.5 Gbps |
| Forwarding Rate: | 18.6 Mpps |
| Power Method 1: | PoE In (Port 1) |
| Supported PoE Injectors / Power Supplies Standard: | 802.3af/at |
| PoE Injectors / Power Supplies Voltage Range: | 44 - 57 V DC |
| Power Method 2: | USB-C |
| USB-C Voltage Range: | 4.8 - 5.2 V DC |
| Included Power Adapter: | 5V, 1A USB-C Power Adapter (single pack only) |
| Max. Power Consumption (PoE Injectors / Power Supplies): | 6.4 W |
| Max. Power Consumption (USB-C): | 5 W |
| Management Interface: | Ethernet In-Band via UniFi Network Controller |
| Required Controller Version: | UniFi Network 8.4.62 or newer (latest recommended) |
| VLAN Support: | Yes, up to 256 VLANs (802.1Q) |
| MAC Address Table: | 4,000 entries |
| Supported Layer 2 Features: | STP/RSTP, Port Isolation, Storm Control, Port Mirroring, Flow Control, Jumbo Frames, Egress Rate Limit, Loop Protection |
| LED Indicator (System): | 1x Status (White/Blue) |
| LED Indicators (Ethernet): | 5x Link/Activity (Green) |
| Controls: | Factory Reset Button |
| Operating Temperature: | -20 °C to 45 °C |
| Operating Humidity: | 10 to 90% non-condensing |
| Certifications: | CE, FCC, IC, Anatel |
| NDAA Compliance: | Yes |
Scope of Delivery
| 1 x Ubiquiti UniFi Switch Flex Mini 2.5G (USW-Flex-2.5G-5) |
| 1 x 5V, 1A USB-C Power Adapter |
Frequently Asked Questions (FAQ)
Can the Ubiquiti UniFi Switch USW-Flex-2.5G-5 be operated without a UniFi Controller?
Yes, out of the box, the Ethernet Switch functions as an unmanaged 'plug-and-play' device and forwards Network traffic at 2.5 Gbit/s. However, for advanced configurations such as VLANs, port management, or displaying statistics, 'adoption' into a Ubiquiti Networks UniFi Network Controller is essential.
Does this UniFi Switch support VLAN tagging on individual ports?
Yes, unlike earlier 'Flex Mini' models, the USW-Flex-2.5G-5 offers full support for VLAN-tagging (802.1Q) on all ports. Within the UniFi Controller, you can precisely define which VLANs (tagged or untagged) should be present on each port of your UniFi Switch.
Can I power other devices, such as an IP Camera, with this Ethernet Switch?
No, the Ethernet Switch does not have PoE output (PoE Out). It can only receive power via one of its ports (PoE In) to operate itself. It cannot power connected devices, but it is compatible with PoE Injectors / Power Supplies for its own operation.
Is the Ethernet Switch suitable for outdoor use?
No, the USW-Flex-2.5G-5 is explicitly designed for indoor use. The polycarbonate casing and operating temperature specifications are not intended for direct outdoor deployment or use in humid environments. For outdoor Network needs, consider specialized Enclosures or Mounting Systems.
Which PoE Injectors / Power Supplies are included?
A 5V, 1A USB-C PoE Injectors / Power Supplies is included in the single pack. This allows operation even without an existing PoE infrastructure for your Network setup.
Do I need special Ethernet Cables for 2.5 Gbit/s?
For 2.5 Gbit/s (2.5GBASE-T), at least a Cat5e Ethernet Cables is recommended, which is already present in most existing installations. However, for optimal and interference-free performance, especially over longer distances, the use of Cat6 or Cat6a Cabling is advisable for your Network.
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