Ubiquiti USW-FLEX vs Ubiquiti USW-FLEX-MINI: Specification Comparison
Both the USW-FLEX and USW-FLEX-MINI are Ubiquiti UniFi 5-port managed gigabit switches aimed at compact, edge, or distributed deployments. They share identical switching capacity (10 Gbps), forwarding rate (7 Mpps), VLAN depth (1,000), and port count (5× GbE). The critical divergence is power: the USW-FLEX is a PoE++ sourcing switch powered by upstream PoE, while the USW-FLEX-MINI is a USB-C-powered device with no PoE output. Buyers cross-shopping these are weighing powered-device delivery and environmental ruggedness against extreme compactness and low-power simplicity.
In This Guide
- Which switch can power downstream devices — and how much budget does it provide?
- Where can each switch be physically deployed — indoors only, or in harsh outdoor and industrial sites?
- Do the two switches deliver equivalent data-plane performance and management capability?
- Which should you choose: the USW-FLEX or the USW-FLEX-MINI?
- Side-by-Side Specs
- FAQ
Which switch can power downstream devices — and how much budget does it provide?
The USW-FLEX is a PoE++ (802.3bt) sourcing switch with a stated 60W total PoE output budget and a single-port maximum of 54V/1.11A (~60W). It accepts power from an upstream PoE+ source at either 46W or 20W input. This makes it capable of powering cameras, access points, VoIP phones, or other PoE-class devices directly from its downstream ports without a separate power injector or local AC outlet.
The USW-FLEX-MINI carries a PoE (802.3af) notation in its specs but its power budget is listed as 2.5W maximum total consumption, powered solely by a USB Type-C connection at 5V/1A (4.8–5.2V DC). No PoE output budget figure is provided in the supplied specifications. Buyers who need to power any downstream PoE device cannot rely on the USW-FLEX-MINI based on the available spec data; it functions as a pure traffic-switching edge device.
Where can each switch be physically deployed — indoors only, or in harsh outdoor and industrial sites?
The USW-FLEX is rated for an operating temperature of -40°C to 55°C (-40°F to 131°F) at its 46W PoE output mode, with storage down to -30°C and up to 70°C. It supports desktop, wall-mount, and pole-mount configurations at 122.5 × 107.1 × 28 mm and 230 g. ESD protection is rated at ±16kV air and ±16kV contact. This positions the USW-FLEX for outdoor enclosures, industrial sites, unheated buildings, and remote edge locations that experience temperature extremes.
The USW-FLEX-MINI is rated -5°C to 45°C (23°F to 113°F) — a strictly indoor, climate-controlled range. Its enclosure is polycarbonate, dimensions are 107 × 70 × 21 mm, and it weighs 150 g. It supports desktop placement only; no wall-mount or pole-mount configuration is listed in the provided specifications. No ESD rating is specified for the MINI. The narrower thermal window and desktop-only form factor limit it to controlled interior spaces such as AV racks, reception desks, or server-room edge closets.
Do the two switches deliver equivalent data-plane performance and management capability?
Both switches share identical core switching specifications: 10 Gbps switching capacity, 5 Gbps non-blocking throughput across all five ports, a 7 Mpps forwarding rate, and support for up to 1,000 VLANs. Both are managed via Ethernet and integrate into the UniFi ecosystem. Neither model lists differences in SNMP versions, Layer 3 features, spanning tree variants, or QoS queuing in the supplied specifications, so no differentiation can be drawn on those dimensions from the provided data.
Both carry NDAA-compliant status and identical certification sets (CE, FCC, IC, Anatel), differing only in Anatel registration numbers (14502-20-08356 for the FLEX vs. 14501-20-08356 for the MINI). From a pure data-plane and management perspective, the two switches are functionally equivalent at the spec level provided; the USW-FLEX is heavier (230 g vs. 150 g) and physically larger, which is the natural trade-off for its rugged enclosure and PoE sourcing electronics.
Which should you choose: the USW-FLEX or the USW-FLEX-MINI?
Our take: The USW-FLEX is the stronger choice when downstream devices need power or when the deployment environment falls outside a controlled interior. It delivers 60W of PoE++ output — versus no documented PoE output on the USW-FLEX-MINI — and operates across a -40°C to 55°C range versus the MINI's -5°C to 45°C window, a 95-degree wider thermal envelope. It also adds wall and pole mounting to the desktop option, while the MINI offers desktop-only. Both switches are identical on data-plane metrics: 10 Gbps switching capacity, 5 Gbps non-blocking throughput, 7 Mpps forwarding, and 1,000 VLANs. The USW-FLEX-MINI is appropriate where no PoE output is needed, the installation is in a temperature-stable interior, and an available USB-C 5V source eliminates the need for PoE infrastructure. Platform qualifier: both integrate into the UniFi management ecosystem and are NDAA-compliant.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | Ubiquiti USW-FLEX | Ubiquiti USW-FLEX-MINI |
|---|---|---|
| SKU | USW-FLEX | USW-FLEX-MINI |
| Ports | 5× Gigabit Ethernet | 5× Gigabit Ethernet |
| Switching Capacity | 10 Gbps | 10 Gbps |
| Non-Blocking Throughput | 5 Gbps | 5 Gbps |
| Forwarding Rate | 7 Mpps | 7 Mpps |
| VLAN Support | 1,000 VLANs | 1,000 VLANs |
| PoE Output | 60W PoE++ (802.3bt) | Not specified in provided specs |
| Power Input | PoE+ upstream (46W or 20W) | USB Type-C, 5V DC, 1A |
| Power Consumption (excl. PoE) | 5W | 2.5W |
| Operating Temperature | -40°C to 55°C | -5°C to 45°C |
| Storage Temperature | -30°C to 70°C | — |
| ESD Protection | ±16kV Air, ±16kV Contact | — |
| Dimensions | 122.5 × 107.1 × 28 mm | 107 × 70 × 21 mm |
| Weight | 230 g (8.1 oz) | 150 g (5.3 oz) |
| Mount Options | Desktop, wall, pole | Desktop only |
| NDAA Compliant | Yes | Yes |
Frequently Asked Questions
Which should you choose: the USW-FLEX or the USW-FLEX-MINI?
The USW-FLEX is the stronger choice when downstream devices need power or when the deployment environment falls outside a controlled interior. It delivers 60W of PoE++ output — versus no documented PoE output on the USW-FLEX-MINI — and operates across a -40°C to 55°C range versus the MINI's -5°C to 45°C window, a 95-degree wider thermal envelope. It also adds wall and pole mounting to the desktop option, while the MINI offers desktop-only. Both switches are identical on data-plane metrics: 10 Gbps switching capacity, 5 Gbps non-blocking throughput, 7 Mpps forwarding, and 1,000 VLANs. The USW-FLEX-MINI is appropriate where no PoE output is needed, the installation is in a temperature-stable interior, and an available USB-C 5V source eliminates the need for PoE infrastructure. Platform qualifier: both integrate into the UniFi management ecosystem and are NDAA-compliant.
Can the USW-FLEX-MINI power a PoE camera or access point?
The provided specifications list the USW-FLEX-MINI's total power consumption as 2.5W via USB-C at 5V. No PoE output power budget is specified. Based on available spec data, the USW-FLEX-MINI cannot be confirmed as a PoE power source for downstream devices. The USW-FLEX, by contrast, specifies 60W of PoE++ output and is designed to power downstream PoE loads.
Is the USW-FLEX or USW-FLEX-MINI suitable for an outdoor or unheated enclosure?
The USW-FLEX is rated for -40°C to 55°C and supports wall and pole mounting, making it appropriate for outdoor enclosures, industrial sites, and unheated spaces. The USW-FLEX-MINI is rated only for -5°C to 45°C with desktop placement only, restricting it to climate-controlled interior environments.
Do the two switches perform the same in terms of network throughput and VLAN capacity?
Yes, based on the provided specifications both switches share identical data-plane figures: 10 Gbps switching capacity, 5 Gbps non-blocking throughput, 7 Mpps forwarding rate, and support for up to 1,000 VLANs. They also share the same 5-port GbE port count and UniFi managed-Ethernet management. The differentiation lies in PoE output, operating temperature, and mounting options — not in switching or VLAN performance.
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