TP-Link SG105PP-M2 vs Ubiquiti USW-FLEX-3: Specification Comparison
Both the TP-Link TL-SG105PP-M2 and the Ubiquiti USW-FLEX-3 are 5-port PoE desktop switches aimed at edge deployments — powering IP cameras, access points, and similar devices at the network periphery. The TP-Link unit leads with 2.5G multi-gigabit ports and an unmanaged design, while the Ubiquiti offers full UniFi-ecosystem management at standard gigabit speeds. Installers and IT buyers choosing between them are weighing raw bandwidth and PoE budget against software-defined control and environmental ruggedness.
In This Guide
Which switch delivers more bandwidth and PoE power per port?
The TL-SG105PP-M2 provides five 2.5 Gbps RJ45 ports — four of which are PoE++ (802.3bt) and one non-PoE uplink — with a total PoE budget of 65 W and a switching capacity of 19 Gbps at a forwarding rate of 18.6 Mpps (at 2.5G line rate). This makes it well suited for high-bandwidth endpoints such as 4K IP cameras or Wi-Fi 6/6E access points that draw up to 90 W on 802.3bt.
The USW-FLEX-3 offers five 10/100/1000 Mbps ports, all PoE-capable (802.3af/at) at 54 V / 1.11 A per the spec sheet. Its total PoE budget is not explicitly stated in the provided specifications. Per-port speed is capped at 1 Gbps, which is the standard ceiling for conventional IP cameras and 802.11ac/Wi-Fi 6 APs drawing moderate throughput. The PoE++ (802.3bt) notation appears in the product data but is not corroborated by the output voltage/current figure (54 V × 1.11 A ≈ 60 W aggregate maximum if that is the PSU ceiling).
For deployments requiring multi-gigabit uplink or high-wattage powered devices, the TP-Link's 2.5G ports and documented 65 W PoE budget provide a clearly stated advantage. The USW-FLEX-3's aggregate PoE capacity is not confirmed in the provided specifications and should be verified against the official datasheet before sizing the installation.
Which switch gives installers more remote visibility and control?
The TL-SG105PP-M2 is unmanaged. It supports auto-negotiation and a PoE Auto Recovery function (which power-cycles a hung powered device automatically), but there is no web GUI, CLI, SNMP, or cloud dashboard. Configuration is limited to physical port behavior. This is suitable for standalone installations where simplicity and zero-touch operation are priorities, but it offers no remote diagnostics, VLAN segmentation, port mirroring, or traffic monitoring.
The USW-FLEX-3 is fully managed, accessible via Web GUI and CLI, and integrates into the UniFi controller ecosystem. UniFi integration enables centralized configuration, per-port statistics, VLAN assignment, and remote management across sites from a single dashboard. This is a material operational advantage for multi-site deployments or IT teams that require auditable change control and remote troubleshooting.
If network visibility, VLAN support, or centralized management is a requirement — common in enterprise and multi-tenant physical-security deployments — the USW-FLEX-3 is architecturally differentiated from the TL-SG105PP-M2, which cannot be managed at all.
Which switch is better suited to harsh or outdoor-adjacent installations?
The TL-SG105PP-M2 is rated for operation from 0 °C to 50 °C (32–122 °F) and supports wall and rack mounting. Its dimensions are 294 × 180 × 44 mm. No ESD protection rating is provided in the supplied specifications. The power supply accepts 100–240 VAC, 50/60 Hz, with a maximum power consumption of 123 W (the full unit draw including PoE delivery).
The USW-FLEX-3 is rated for a wider operating temperature range of -20 °C to 60 °C (-4 °F to 140 °F) and a storage range of -30 °C to 70 °C. It carries an ESD protection rating of ±16 kV (air) and ±16 kV (contact) and is certified CE, FCC, and IC. It supports wall, pole, and rack mounting — the pole-mount option being relevant for outdoor utility or perimeter deployments. Weight is listed at 2.35 lb; exact chassis dimensions in the spec data appear corrupted (122.5″ × 107.1″ × 28.0″ is dimensionally implausible and should be verified against the official datasheet).
For edge deployments subject to temperature extremes, electrostatic discharge from cabling, or outdoor-adjacent mounting (pole, enclosure), the USW-FLEX-3's broader thermal envelope and explicit ESD rating are meaningful advantages that the TL-SG105PP-M2's specifications do not address.
Which should you choose: the SG105PP-M2 or the USW-FLEX-3?
Our take: The TL-SG105PP-M2 is the stronger choice when maximum per-port bandwidth and a documented 65 W PoE budget are the primary requirements in a cost-sensitive, unmanaged edge deployment. Its 2.5 Gbps ports deliver 2.5× the throughput of the USW-FLEX-3's 1 Gbps ports, its 802.3bt PoE++ support is explicitly stated, and its 19 Gbps switching capacity handles multi-gigabit camera or AP loads. However, the USW-FLEX-3 holds three concrete advantages: a wider operating range (-20 to 60 °C vs. 0 to 50 °C), a ±16 kV ESD protection rating not present in the TP-Link spec, and full managed operation — Web GUI, CLI, and UniFi ecosystem integration — enabling VLANs, remote diagnostics, and centralized control. Choose the TL-SG105PP-M2 for unmanaged, bandwidth-intensive indoor closets; choose the USW-FLEX-3 for managed, multi-site, or environmentally demanding edge nodes already on the UniFi platform.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | TP-Link SG105PP-M2 | Ubiquiti USW-FLEX-3 |
|---|---|---|
| Product Type | Desktop PoE Switch (Unmanaged) | Managed PoE Switch |
| Port Count | 5 × RJ45 | 5 × RJ45 |
| Port Speed | 2.5 Gbps (Multi-Gigabit) | 10/100/1000 Mbps (Gigabit) |
| PoE Ports | 4 of 5 | 5 of 5 |
| PoE Standard | 802.3bt (PoE++) | 802.3af/at (PoE++ noted but unconfirmed by PSU spec) |
| Total PoE Budget | 65 W | — (not stated in provided specs) |
| Switching Capacity | 19 Gbps | — |
| Forwarding Rate | 18.6 Mpps (at 2.5G) | — |
| Management | None (unmanaged) | Web GUI, CLI, UniFi ecosystem |
| VLAN Support | — | Yes (via UniFi) |
| Operating Temp | 0 to 50 °C (32–122 °F) | -20 to 60 °C (-4 to 140 °F) |
| ESD Protection | — | ±16 kV Air / ±16 kV Contact |
| Mount Type | Wall, Rack | Wall, Pole, Rack |
| Power Input | 100–240 VAC, 50/60 Hz | External AC (voltage not specified in provided specs) |
| Max Power Consumption | 123 W | — |
| Certifications | — | CE, FCC, IC |
Frequently Asked Questions
Which should you choose: the SG105PP-M2 or the USW-FLEX-3?
The TL-SG105PP-M2 is the stronger choice when maximum per-port bandwidth and a documented 65 W PoE budget are the primary requirements in a cost-sensitive, unmanaged edge deployment. Its 2.5 Gbps ports deliver 2.5× the throughput of the USW-FLEX-3's 1 Gbps ports, its 802.3bt PoE++ support is explicitly stated, and its 19 Gbps switching capacity handles multi-gigabit camera or AP loads. However, the USW-FLEX-3 holds three concrete advantages: a wider operating range (-20 to 60 °C vs. 0 to 50 °C), a ±16 kV ESD protection rating not present in the TP-Link spec, and full managed operation — Web GUI, CLI, and UniFi ecosystem integration — enabling VLANs, remote diagnostics, and centralized control. Choose the TL-SG105PP-M2 for unmanaged, bandwidth-intensive indoor closets; choose the USW-FLEX-3 for managed, multi-site, or environmentally demanding edge nodes already on the UniFi platform.
Can I power a high-wattage Wi-Fi 6E access point from either of these switches?
The TL-SG105PP-M2 explicitly supports 802.3bt (PoE++) on its four PoE ports, which can deliver up to 90 W per port under the standard, within its 65 W total budget — so a single high-draw AP is feasible if other ports are lightly loaded. The USW-FLEX-3's PoE++ notation appears in the product data, but the output spec (54 V / 1.11 A) and the absence of a confirmed total PoE budget in the provided specifications mean its maximum per-port wattage should be confirmed against the official Ubiquiti datasheet before deploying a high-wattage 802.3bt device.
Is the TL-SG105PP-M2 or USW-FLEX-3 better for a remote site I need to manage centrally?
The USW-FLEX-3 is purpose-built for that use case. It is fully managed via Web GUI and CLI and integrates with the UniFi controller, enabling centralized configuration, VLAN segmentation, per-port monitoring, and remote troubleshooting across multiple sites. The TL-SG105PP-M2 is unmanaged — it has no management interface, no VLAN support, and no remote visibility beyond the physical PoE Auto Recovery function.
Which switch should I choose for an installation in an unconditioned outdoor enclosure or cold environment?
The USW-FLEX-3 is the better fit. Its operating temperature range (-20 to 60 °C) covers cold-weather environments that would fall outside the TL-SG105PP-M2's rated range (0 to 50 °C). The USW-FLEX-3 also carries a ±16 kV ESD protection rating — relevant when running cables across long outdoor runs — and supports pole mounting. The TP-Link unit's specifications do not include an ESD rating or pole-mount option.
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