



Ubiquiti UniFi Switching
Ubiquiti UniFi Switch Flex 2.5G PoE (USW-Flex-2.5G-8-PoE)
The Switch Flex 2.5G PoE is a flexible 8-port 2.5 GbE PoE++ switch from Ubiquiti with a 10 GbE RJ45/SFP+ combination uplink port. All eight 2.5 GbE ports supply PoE++, at up to 64W per port. The switch can be powered over PoE+++ through its 10 GbE RJ45 port, giving 76W of PoE, or by an optional 210W AC adapter, sold separately, giving 196W. It is managed in the UniFi Network application, version 9.0.114 and later.
Quick Glance
Key Features
Eight 2.5 GbE PoE++ ports
All eight 2.5 GbE ports (2.5G/1G/100M/10M) supply PoE++. Ubiquiti gives the maximum wattage per port as 15.4W for PoE, 32W for PoE+ and 64W for PoE++. Total PoE availability depends on how the switch is powered: 196W with the 210W AC adapter, 76W with PoE+++ input, 46W with PoE++ input and 16W with PoE+ input.
10 GbE combo uplink that can also power the switch
The combination uplink offers a 10 GbE RJ45 port (10G/5G/2.5G/1G/100M) and a 10G SFP+ port (10G/1G). The 10 GbE RJ45 port is a PoE+++ input, so one cable can carry both the uplink and power. Ubiquiti rates switching capacity at 60 Gbps, non-blocking throughput at 30 Gbps and the forwarding rate at 45 Mpps.
Compact, with desk, wall, DIN or magnetic mounting
The polycarbonate unit measures 212.9 x 99.4 x 33.5 mm and weighs 567 g. It sits on a desk, with wall, DIN and magnetic mounting also supported (DIN and magnetic mounts sold separately). Managed in UniFi Network (9.0.114 and later), it supports up to 256 VLANs, STP and RSTP, storm control, port isolation and port mirroring.
Detailed Specifications
Specifications are from Ubiquiti's official tech specs and store listing for the Switch Flex 2.5G PoE (USW-Flex-2.5G-8-PoE). The AC power adapter is sold separately, and actual PoE availability may vary based on input cable length and quality. Ubiquiti may update specifications without notice.
Need-to-Know
- The AC power adapter is sold separately. Without it, the switch must be powered over PoE through its 10 GbE RJ45 port.
- Available PoE depends on the power source: 196W with the 210W AC adapter, 76W with PoE+++ input, 46W with PoE++ input and 16W with PoE+ input. Ubiquiti notes that actual PoE availability may vary based on input cable length and quality.
- Each 2.5 GbE port supplies up to 64W (PoE++), but the combined draw of all powered devices must stay within the total PoE available from the chosen power source.
- DIN rail and magnetic mounting are supported, but Ubiquiti sells those mounts separately. SFP+ modules and cables are not included.
- Managing the switch needs the UniFi Network application, version 9.0.114 or later.
Best For / Customer Benefits
Customer Benefits
- Expert consultation to choose the right power source for the PoE budget your devices need.
- Help planning PoE+++ uplinks, or ordering the 210W AC adapter that is sold separately.
- VAT invoice issued with every order for UAE business buyers.
- Genuine Ubiquiti hardware, specified from Ubiquiti's own published spec sheet.
Best For
Frequently Asked Questions
It depends on how the switch is powered. Ubiquiti lists 196W of PoE with the 210W AC adapter, 76W with PoE+++ input, 46W with PoE++ input and 16W with PoE+ input. Each of the eight ports can supply up to 64W (PoE++), 32W (PoE+) or 15.4W (PoE). Actual availability may vary with input cable length and quality.
No. Ubiquiti lists the AC/DC adapter as excluded and states the AC power adapter is sold separately. Without it, power the switch with PoE+++, PoE++ or PoE+ into its 10 GbE RJ45 port.
Ubiquiti lists a 10 GbE RJ45 port (10G/5G/2.5G/1G/100M) and a 10G SFP+ port (10G/1G), both marked as a combo port, and describes them as a 10 GbE RJ45/SFP+ combination uplink port. The 10 GbE RJ45 side is also the PoE+++ power input.
Ubiquiti lists the form factor as compact desktop, with wall, DIN and magnetic mounting; the DIN and magnetic mounts are sold separately. The switch measures 212.9 x 99.4 x 33.5 mm and weighs 567 g.
It is managed in the UniFi Network application, version 9.0.114 and later, with up to 256 VLANs, STP and RSTP, storm control, multicast and broadcast rate limiting, port isolation, port mirroring and loop protection.
Planning 2.5 GbE PoE devices?
Tell us which access points, cameras or other PoE devices you need to power and how you will feed the switch, and we will check them against the Switch Flex 2.5G PoE budget.

