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
Ubiquiti · Gigabit · 2019
Ubiquiti UniFi Flex Mini (USW-Flex-Mini)
Illustration
Recommended
A tiny five-port UniFi switch that can run off PoE or a USB-C charger.
- Ports
- 5 × 1 GbE
- Management
- Managed
- PoE
- No
Great fit for: Silent
No reference price: check the store
Researched from manufacturer data and public reviews; not tested by us.· Last reviewed Oct 29, 2026
What it is good for
Derived from the specsOur rules applied to its specs. The reasons come from the data in the specification table. How the verdicts are decided
- 2.5 GbE networkNot suitable
- Gigabit ports only
- 10 GbENot suitable
- No 10 GbE port
- VLANsGood
- 802.1Q tagged VLANs
- Configured from a controller app (UniFi Network), not from its own web page
- Smart switch: simple web page, fine for a few VLANs
- PoENot suitable
- It can be powered by PoE, but supplies none
- Homelab coreLimited
- 5 ports, VLANs
- Gigabit only
- Fewer than 8 ports
- 10-inch rackGood
- 107 mm wide: fits on a 10-inch shelf
- 21 mm high: 1U
- SilentGreat fit
- No fan
- 2.5 W at most without PoE
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.
- Ubiquiti UniFi Flex Mini USW-Flex-Mini
- Check price Amazon.com (opens in a new tab)Amazon.comCheck availability
Other regions (3)
- Check price Amazon.co.uk (opens in a new tab)Amazon.co.ukUnited Kingdom · Check availability · Search results
- Check price Amazon.es (opens in a new tab)Amazon.esSpain · Check availability · Search results
- Check price Amazon.de (opens in a new tab)Amazon.deGermany · Check availability · Search results
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Overview
Editorial opinionBest for: Extending a UniFi network to a desk or a TV, powered from the cable.
Editorial opinionWould we buy it today?
Yes if you already run UniFi; otherwise a stand-alone smart switch is simpler.
Pros and cons
Editorial opinionPros
- Powered by PoE or USB-C
- VLANs from the UniFi app
- Very small, 2.5 W
Cons
- Needs a UniFi controller to configure
- Plastic, no link aggregation
Specifications
Factual dataGeneral
- Manufacturer
- Ubiquiti
- Management
- Smart / web-managed
- Form factor
- Palm-sized (under 12 cm)
- Released
- 2019
- Availability
- On sale
Ports
- 1 GbE RJ45
- 5
- Port notes
- Port 1 can take PoE to power the switch
- Switching capacity
- 10 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
- No
- IGMP snooping
- No
- Configurable QoS
- No
- Port mirroring
- Yes
- Loop prevention
- No
- Needs a controller app
- Yes
Power, cooling and size
- Power input
- USB-C 5 V or PoE on port 1
- Power supply
- External adapter
- Max power (without PoE output)
- 2.5 W
- Cooling
- Fanless (silent)
- Case
- Plastic
- 10-inch rack
- No rack kit
- Wall mounting
- Yes
- Size (W × D × H)
- 107 × 70 × 21 mm
- Weight
- 150 g
Source: Manufacturer specifications
Measured
Factual dataMeasured values with their source. We never invent figures.
No measured values yet.
Alternatives
10 GbE
MikroTik CRS305-1G-4S+IN
- Ports
- 4 × SFP+ + 1 × 1 GbE
- PoE
- No
- Max power
- 18 W
Great fit for: 10 GbE · VLANs
Four 10 GbE SFP+ cages in a fanless box the size of a paperback.
from $149 (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