Meet the small switch with big bandwidth. The Ubiquiti UniFi Flex 2.5G PoE is a compact Layer 2 switch designed for next-gen networks that need higher throughput and intelligent PoE delivery. It features 8× 2.5GbE PoE++ access ports plus a 10GbE RJ45/SFP+ combo uplink for flexible aggregation. When powered by the optional AC adapter (sold separately), it offers a PoE budget up to 196W; powered via PoE on the 10GbE uplink, up to ~76W PoE is available. With 30 Gbps non-blocking throughput, 60 Gbps switching capacity, and 45 Mpps forwarding, it keeps every port running at full speed.
Why it’s great
- High-speed access: 8× 10/100/1000/2.5G RJ45 ports with PoE++ for Wi-Fi 6/7 APs, IP cameras, VoIP, and more.
- Flexible uplink: 1× 10GbE RJ45/SFP+ combo uplink to your core or aggregation.
- Two power options: PoE input over the 10GbE uplink or external AC adapter (not included) for a higher PoE budget.
- UniFi simplicity: Adopt and manage with the UniFi Network application for monitoring, VLANs, and updates.
- Compact & tough: Desktop/wall-mount polycarbonate chassis with included mounting kit.
Perfect for
- Upgrading AP backhaul to 2.5GbE in offices, hospitality, education, and retail
- Powering mixed PoE endpoints (APs, cameras, intercoms, phones) from one compact switch
- Small network closets and space-constrained installs needing a 10GbE uplink
Key specifications
| Brand / Series | Ubiquiti UniFi |
| Model | USW-FLEX-2.5G-8-POE (USWFLX25G) |
| Ports | 8 × 10/100/1000/2.5G RJ45 (PoE++), 1 × 10GbE RJ45/SFP+ combo uplink |
| Switching capacity | 60 Gbps |
| Non-blocking throughput | 30 Gbps |
| Forwarding rate | 45 Mpps |
| MAC address table | 4,000 entries |
| PoE type | PoE++ (per 2.5GbE port) |
| Powering options | PoE input via 10GbE uplink or external AC adapter (not included) |
| PoE budget (max) | Up to ~196W with AC adapter; up to ~76W when PoE-powered |
| Max device power draw | 14W (PoE input) / 17W (AC adapter) / 210W incl. PoE output |
| Form factor | Desktop / Wall-mount (mounting kit included) |
| Material | Polycarbonate |
| Dimensions (W×H×D) | 212.9 × 99.4 × 33.5 mm |
| Weight | Approx. 567 g |
| EAN/UPC | 0810084696057 |
What’s in the box
- UniFi Flex 2.5G PoE 8-Port Switch
- Mounting kit
- Quick start information
Note: External AC power adapter is not included.
Management & software
- Adopt with UniFi Network for single-pane management, VLANs, PoE control, device insights, and updates
- Supports standard Layer 2 switching features and QoS for voice/video
Helpful accessories
FAQs
Q: Can I power the switch from PoE on the uplink?
A: Yes. When PoE-powered over the 10GbE uplink, the available PoE budget is up to ~76W. For the highest PoE budget (up to ~196W), use the external AC adapter (sold separately).
Q: Does the combo uplink support both 10GbE copper and SFP+?
A: Yes, it’s a single RJ45/SFP+ combo: use either 10GBASE-T (RJ45) or a 10GbE SFP+ module/cable.
Q: Will 2.5GbE ports work with 1GbE devices?
A: Absolutely. Each 2.5GbE port auto-negotiates 10/100/1000/2.5G for seamless backwards compatibility.
Q: Is rack-mounting supported?
A: This model is designed for desktop or wall mounting. For rack installs, consider a UniFi rack-mount switch.
Quick highlights
- 8× 2.5GbE PoE++ access ports
- 1× 10GbE RJ45/SFP+ combo uplink
- Up to 196W PoE budget with AC adapter (not included)
- 30 Gbps non-blocking, 60 Gbps switching, 45 Mpps forwarding
- Compact, wall-mountable UniFi design with centralised management
Free Shipping.
Delivery to UK mainland - Dispatched same working day if the order is placed before 4:15pm and payment is received.
We offer free shipping for the orders weighing under 2 Kg to Scottish Highlands, Northern Ireland and the Isle of Man, parcels over 2 Kg will have an additional shipping fee to cover the additional costs charged by the carrier for those locations.
Our sales centre is open Monday to Friday from 8:30am to 5:00pm, Saturday 9:00am to 11:am. OR you can send us an eBay message if you prefer.
We want you to be absolutely satisfied with your purchase. In the unlikely event that you have to change your mind, you may return any product within 30 days.
Please make sure the product is in excellent condition, the returned parcel contains everything (including remote, owner's manual, power cord etc.) and is securely packed using the original packaging.
Incomplete returns or missing the original box are subject to adjusted refund amounts, down to 50% of acquisition value.
We accept payment by any of the following methods:
- eBay Payments
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VAT invoice will be automatically sent to your registered Ebay email address. If this hasn't happened, please do not hesitate to contact us providing the email address where you want the VAT invoice to be sent.
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