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Compact white desktop switch with five RJ45 ports and status LEDs

Ubiquiti Networks

Ubiquiti Networks Flex Mini USW-Flex-Mini 5-Port PoE Layer 2 network switch

SKU CH-2AQ4-Z51C9

A compact five-port managed Layer 2 switch with PoE input power option and 10 Gbps switching capacity

  • FormatDesktop
  • Network Management TypeManaged
  • Primary Ports5 x RJ45
  • Primary Port SpeedTotal non-blocking throughput 5 Gbps Switching capacity 10 G
  • PoEYes
  • Layer2

Model Flex Mini

Show 1 more configurations

Struck-through versions exist but are not stocked here.

  • Managed Layer 2 switching with port isolation and storm control
  • 5 Gbps non-blocking throughput across five Gigabit RJ45 ports
  • 10 Gbps switching capacity and 7.44 Mpps forwarding rate
  • Powered via 802.3 PoE input or included 5V USB-C adapter
  • Silent fanless desktop design measuring 107 x 70 x 21 mm

Compact five-port managed switch

The Ubiquiti Networks Flex Mini is a desktop Layer 2 switch with five Gigabit RJ45 ports and a total non-blocking throughput of 5 Gbps. It suits small offices, home labs or retail counters that need silent, fanless operation and simple VLAN or port-isolation features. Power comes either from the included 5 V USB-C adapter or through the single PoE input port when an upstream 802.3 af/at source is available. UniFi Network Controller 5.12 or later handles configuration and monitoring.

Sustained load behaviour

Switching capacity reaches 10 Gbps with a forwarding rate of 7.44 Mpps, so the fabric does not saturate when all five ports run at line rate. The fanless chassis operates from -5 to 45 °C (23 to 113 °F) at 10 to 90 % non-condensing humidity, keeping throughput steady without acoustic noise. Storm control, multicast and broadcast rate limiting, and egress rate limits prevent traffic storms from degrading other ports during prolonged bursts. Jumbo-frame support lets large frames pass without fragmentation overhead.

Upgrade context

It replaces an unmanaged desktop switch when you need per-port VLANs, port mirroring for diagnostics, or flow-control tuning for latency-sensitive gear. The jump is worth it if you want centralised UniFi management instead of per-device web interfaces, or if PoE-in powering removes the need for a nearby mains socket. Buyers who need Layer 3 routing, SFP uplinks, or more than five copper ports should look elsewhere.

Highlights

  • Managed Layer 2 switching with port isolation and storm control
  • 5 Gbps non-blocking throughput across five Gigabit RJ45 ports
  • 10 Gbps switching capacity and 7.44 Mpps forwarding rate
  • Powered via 802.3 PoE input or included 5V USB-C adapter
  • Silent fanless desktop design measuring 107 x 70 x 21 mm

Specifications

BrandUbiquiti Networks
SeriesNetwork Switch
ModelFlex Mini
Part NumberUSW-Flex-Mini
FormatDesktop
Network Management TypeManaged
Primary Ports5 x RJ45
Primary Port SpeedTotal non-blocking throughput 5 Gbps
Switching capacity 10 Gbps
Forwarding rate 7.44 Mpps
PoEYes
Layer2
Layer 2 FeaturesLayer 2 features Port isolation
Storm control
Port mirroring
Multicast / broadcast rate limiting
Flow control
Jumbo frames
Egress rate limit
LEDsSystem Status
Ethernet Speed/link/activity
Dimensions107 x 70 x 21 mm (4.2 x 2.8 x 0.8")
Weight150 g (5.3 oz)
Temperature-5 to 45° C (23 to 113° F)
Humidity10 to 90% noncondensing
Shipping weight0.23 kg
Package size184 × 114 × 48 mm

Other versions of this model

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Questions about this item

Will the fanless USW-Flex-Mini stay cool when running continuously at the top of its operating range?

The switch is rated for -5 to 45° C ambient temperature and has no moving parts, so it dissipates heat passively within that envelope.

What must I already own to manage the USW-Flex-Mini out of the box?

You need a device that can run the UniFi Network Controller version 5.12.5 or higher to configure and monitor the switch.

Can I plug the USW-Flex-Mini into an older 802.3af PoE switch for both power and data?

Yes, the single PoE input port accepts 802.3 af/at power, so a legacy PoE switch can supply both electricity and the uplink connection.

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