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Voltarum Mini Switch Guide
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Ubiquiti · 10 GbE

Ubiquiti UniFi Flex XG (USW-Flex-XG)

Recommended

Four 10 GbE RJ45 ports managed from UniFi, powered by PoE+ or USB-C.

Ports
4 × 10 GbE + 1 × 1 GbE
Management
Managed
PoE
No

Great fit for: 2.5 GbE network · 10 GbE · VLANs

No reference price: check the store

Researched from manufacturer data and public reviews; not tested by us.· Last reviewed Oct 29, 2026

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What it is good for

Derived from the specs

Our rules applied to its specs. The reasons come from the data in the specification table. How the verdicts are decided

  • 2.5 GbE networkGreat fit
    • 4 RJ45 ports at 2.5 GbE or faster
    • Plus 1 at 1 GbE
    • 4 × 10 GbE to link a NAS or another switch without a bottleneck
  • 10 GbEGreat fit
    • 4 × 10 GbE RJ45 (Cat6 cable)
  • VLANsGreat fit
    • 802.1Q tagged VLANs
    • LACP link aggregation
    • Configured from a controller app (UniFi Network), not from its own web page
  • PoENot suitable
    • It can be powered by PoE, but supplies none
  • Homelab coreLimited
    • 5 ports, VLANs
    • LACP to bond links to a NAS or server
    • 4 × 10 GbE
    • Fewer than 8 ports
  • 10-inch rackGood
    • 135 mm wide: fits on a 10-inch shelf
    • 32 mm high: 1U
  • SilentGood
    • No fan
    • 25 W at most without PoE
    • Gets warm: leave air around it

Where to buy

Prices are editorial references (the maker's list price, or a price seen on the date shown), not live prices. Many makers publish no price: check the retailer.

Prices are shown only if updated in the last 24 hours and may change; the retailer’s price at checkout applies. We may earn a commission from these links at no cost to you. Affiliate disclosure

Overview

Editorial opinion

Best for: Adding 10 GbE to a UniFi network for a NAS and a workstation.

Editorial opinionWould we buy it today?

Yes in a UniFi network; otherwise the CRS304 does the same for less.

Pros and cons

Editorial opinion

Pros

  • 4 × 10GBASE-T
  • Fanless
  • Runs off PoE+

Cons

  • Needs a UniFi controller
  • 25 W and heavy for its size

Specifications

Factual data
General
Manufacturer
Ubiquiti
Management
Fully managed (Layer 2)
Form factor
Desktop
Availability
On sale
Ports
10 GbE RJ45
4
1 GbE RJ45
1
Port notes
The gigabit port can take PoE+ to power the switch
Switching capacity
82 Gbps
Power over Ethernet
PoE output ports
None
Can be powered by PoE
Yes
Management
How it is managed
UniFi Network application (controller or UniFi gateway)
802.1Q VLANs
Yes
Link aggregation
Static and LACP (802.3ad)
IGMP snooping
Yes
Configurable QoS
No
Port mirroring
Yes
Loop prevention
Yes
Needs a controller app
Yes
Power, cooling and size
Power input
PoE+ in or USB-C 5 V 5 A
Power supply
External adapter
Max power (without PoE output)
25 W
Cooling
Fanless (silent)
Case
Plastic
10-inch rack
No rack kit
Size (W × D × H)
135 × 185 × 32 mm
Weight
1,200 g

Source: Manufacturer specifications

Measured

Factual data

Measured values with their source. We never invent figures.

No measured values yet.

Alternatives

2.5 GbE + 10 GbE

MikroTik CRS310-8G+2S+IN

Ports
2 × SFP+ + 8 × 2.5 GbE
PoE
No
Max power
21 W

Great fit for: 2.5 GbE network · VLANs · Homelab core · 10-inch rack

Eight 2.5 GbE ports, two 10 GbE SFP+ and full RouterOS management in a 200 mm metal box.

from $219 (list price)Highly recommended

10 GbE

MikroTik CRS304-4XG-IN

Ports
4 × 10 GbE + 1 × 1 GbE
PoE
No
Max power
21 W

Great fit for: 2.5 GbE network · 10 GbE · VLANs

Four 10 GbE RJ45 ports, fanless, with RouterOS, for $199.

from $199 (list price)Highly recommended

2.5 GbE

Ubiquiti UniFi Flex Mini 2.5G (USW-Flex-2.5G-5)

Ports
5 × 2.5 GbE
PoE
No
Max power
6.4 W

Great fit for: 2.5 GbE network · Silent

Five 2.5 GbE ports in a palm-sized box, powered by USB-C or PoE, for $49.

from $49 (typical price)Highly recommended