Two years ago, if you wanted a proper multi-gig gateway with a real application stack behind it, you were buying a rack-mount console the size of a biscuit tin and finding somewhere to put it. Now both Ubiquiti and TP-Link ship the whole idea in a box that disappears on a shelf — and they are betting on two very different things. Ubiquiti’s UniFi Cloud Gateway Fiber (UCG-Fiber) bets that the fiber handoff, the 10G edge, and self-hosted applications are where the network is going. TP-Link’s Omada Fusion 2.5G bets that the right move is to weld the controller to the router and make license-free cloud management the product.

As an integrator, I have deployed a bit of both ecosystems, and the truth is these boxes are not really competing for the same customer even though the marketing makes them look like twins on a spec sheet. This is the comparison I would give a client sitting across the desk from me: real numbers, real limitations, and the install scenarios where each one is actually the right call.

Ubiquiti UCG-Fiber at a Glance

The UCG-Fiber is Ubiquiti’s answer to a simple question: what if the fiber ONT handoff lived inside the gateway? Here is what the spec sheet says (and this is a spec sheet that reads far bigger than the box does):

• Processor / memory: Quad-core ARM Cortex-A73 at 2.2 GHz, 3 GB of system memory — this is a genuinely fast edge CPU, not a repurposed switch chip
• Ports: (1) 10G SFP+ plus (1) 10 GbE RJ45 as default WAN ports, a 4-port 2.5 GbE switch built in, and a second 10G SFP+ cage
• Routing performance: up to 5 Gbps IDS/IPS throughput, Layer 7 DPI, zone-based firewall with content filtering and ad blocking, OSPF and BGP dynamic routing, Advanced NAT (SNAT/DNAT/masquerade/NAT pooling/1:1 NAT), and an integrated RADIUS server with RadSec support
• SD-WAN without the enterprise tax: license-free SD-WAN with Site Magic site-to-site, plus a full VPN toolkit on both ends — WireGuard, OpenVPN, IPSec, L2TP, Teleport zero-config VPN, and Identity one-click VPN
• The NVR trick: selectable NVMe storage up to 2 TB running UniFi Protect locally — this box is a gateway, a controller, and a camera recorder at the same time (rated for 50+ managed devices; roughly 15 HD / 8 2K / 5 4K camera tiers, 50 UniFi Access hubs, 500+ simultaneous users)
• Power and physical: 30W PoE budget for a couple of cameras right off the gateway, 54V DC adapter included, fanless-friendly desktop form factor, and NDAA compliant

The architecture matters more than any single line item. UniFi’s model is one console runs everything: Network adoption, Protect recording, Access, Talk, and Connect all live on the same box — which is why Ubiquiti put 3 GB of RAM and a quad-core A73 in a desktop gateway that some competitors still sell as a pure router. On top of it, CyberSecure subscription adds 55,000+ IDS/IPS signature sets and cloud threat features when you want them. The Cloud Key-style management you used to hang off a switch is now the gateway itself.

TP-Link Omada Fusion 2.5G at a Glance

Fusion is TP-Link’s response to cloud management without the cloud license fee — the controller software is literally built into the gateway, so there is no OC200/OC300 hardware key to buy, no self-hosted Java container to babysit, and no per-device subscription. What you get for roughly $170:

• Processor / memory: quad-core CPU with 2 GB DDR4 — smaller than Ubiquiti’s silicon, and you’ll feel the difference under IPS load
• Ports: 5x 2.5 GbE RJ45 total — one dedicated WAN, four switchable LAN/WAN — so with three WAN uplinks still loaded you are running the LAN on the last 2.5G port
• Routing performance: roughly 2.1 Gbps-class IDS/IPS throughput in TP-Link’s marketing; independent lab testing measured ~2,360 Mbps NAT and 2,183 Mbps with IPS/IDS enabled, 150,000 concurrent sessions, and about 1 Gbps site-to-site on IPsec
• Management: license-free cloud management out of the box, Bluetooth provisioning (adoption from the Omada app in minutes with batch adoption of all devices), a 2.51-inch on-device touchscreen for live diagnostics, app-based ACLs, one-click Auto QoS, content filtering and ad blocking
• SD-WAN: full-mesh SD-WAN with up to 20 sites, direct inter-site links — the headline SMB feature
• Physical: 160 x 130 x 31.5 mm, fully fanless, USB-C power (5V/3A, under 9W draw), desktop/wall-mount (magnetic plate) and rack options — mount kits sold separately

Worth noting for buyers who clicked on the wrong link: Fusion is a three-model line — the plain Fusion 2.5G (the one above), the Fusion G+ (gigabit LAN ports, no touchscreen), and the Fusion 2.5G PoE (8x 2.5G PoE+ ports, 110W budget, fan, bigger touchscreen). The PoE version is the one to quote if cameras or APs need to hang off the gateway itself.

The Spec Sheet, Side by Side

	Ubiquiti UCG-Fiber	TP-Link Omada Fusion 2.5G
CPU	Quad-core ARM Cortex-A73 @ 2.2 GHz	Quad-core (unspecified ARM)
Memory	3 GB	2 GB DDR4
WAN	(1) 10G SFP+ + (1) 10 GbE RJ45 (default), up to 6 WANs	(1) dedicated 2.5 GbE RJ45
LAN / switchable	4x 2.5 GbE + 2nd 10G SFP+ (10G/1G)	4x 2.5 GbE LAN/WAN (up to 4 WAN total)
IDS/IPS throughput	5 Gbps	~2.1 Gbps-class (~2.18 Gbps measured; ~2.36 NAT)
Dynamic routing	OSPF + BGP	Static/policy routing, no BGP/OSPF at this tier
SD-WAN	License-free SD-WAN, Site Magic site-to-site	Full-mesh SD-WAN, up to 20 sites
VPN tunnels	WireGuard, OpenVPN, IPSec, L2TP client+server; Teleport, one-click Identity VPN	LightLink one-click VPN, IPsec (~1 Gbps measured site-to-site), OpenVPN
Security	L7 app-aware firewall, DPI, zone firewall, content filtering + ad blocking, integrated RADIUS (+RadSec), 55k+ IPS signatures via CyberSecure subscription	App-based ACLs, DPI, content filtering + ad blocking, one-click Auto QoS
Integrated server roles	UniFi Network + Protect NVR (NVMe bay up to 2 TB), Access, Talk, Connect; 50+ devices, 500+ users	Built-in Omada controller; ~30 devices / 300 clients supported
PoE	30 W PoE budget on the gateway	None (Fusion 2.5G PoE model: 8x 2.5G PoE+, 110 W)
On-device UI	0.96″ status display	2.51″ color touchscreen w/ live diagnostics
Management	UniFi console/self-hosted/cloud; single pane across UniFi stack	License-free Omada cloud + Bluetooth provisioning
Power	54V DC adapter (29.4 W excl. PoE)	USB-C 5V/3A (<9 W total)
Form factor	212.8 x 127.6 x 30 mm, polycarbonate desktop	160 x 130 x 31.5 mm, fanless; wall/rack mounts sold separately
Street price	~$279 (storage tier by SKU)	~$170

Fusion numbers from TP-Link marketing and independent measured results (lazyadmin.nl); UBNT numbers from official techspecs.ui.com. Both vendors caveat real-world throughput by features enabled.

Head-to-Head: Where Each One Actually Wins

Raw routing power: Ubiquiti, by a real margin

5 Gbps versus roughly 2.1-2.4 Gbps with security features enabled. If your internet circuit is a gigabit, you will never feel the difference. If you have a 2.5G or multi-gig fiber circuit — or a future one in budget — the UCG-Fiber keeps IPS/IDS switched on at full line rate and the Fusion starts becoming the bottleneck. Same story on concurrent sessions and dynamic routing: OSPF, BGP, RadSec, and NAT pooling are UniFi features; Omada has solid static and policy routing but the enterprise dynamic routing table is thinner.

Port economics: TP-Link, if you are building a switch-free closet

Five fully-switched 2.5G ports with four WAN-configurable is genuinely clever for tiny offices that don’t want a switch at all — WAN1 plus three failover links with a single switch port feeding the LAN. But Ubiquiti’s port set is 10G at the edge (SFP+ WAN, 10GBASE-T fallback, a second SFP+ for aggregation or an ISG-style inline segment) with 2.5G for the LAN drop. If you already have multi-gig switches, Ubiquiti’s layout is the right shape; the Fusion’s strength is being the entire wiring closet for a three-person dental office.

Management and day-2 operations: TP-Link wins for zero-ops, Ubiquiti for depth

Fusion’s Bluetooth adoption and on-device touchscreen are legitimately great for installers — commission a site from your phone in a closet with no laptop, and walk a client through their own network on the touchscreen. The license-free cloud is a real cost line: Omada cloud used to need hardware keys or self-hosting, and TP-Link is undercutting on exactly that. UniFi management is deeper: application-level policies per device group, Identity as a full RADIUS/user DB, Protect events tied to firewall zones, Site Magic SD-WAN with visual overlays. It assumes you’ll log in and configure things; Fusion assumes you mostly won’t.

The differentiators neither spec sheet headline admits

• UCG-Fiber runs Protect. If you want cameras on the box, that is a 2 TB NVMe bay and a self-hosted NVR with AI detections — a feature TP-Link’s VAG/Sentinel line handles, but not the Fusion gateway itself. Ubiquiti is selling one box that is router + controller + NVR + access controller.
• Fusion has no fan. In a wall closet next to clients, silence is a selling point. Ubiquiti’s fan design is quiet but not zero.
• Power. PoE on the UCG-Fiber (30W) will run a camera or two off the gateway itself; base Fusion doesn’t do PoE at all (that’s the PoE model). On the other hand, the UCG-Fiber is a 54V adapter brick in a world that was mostly done with power bricks.
• Voice: Ubiquiti Talk telephony works on the UCG; Fusion has no telephony story as of this writing.

Use Case One: The Fiber-First Home or MTU (My Default Is Ubiquiti)

Fiber handoff (ONT with SFP+ or the UCG-Fiber’s own fiber-side SFP+ WAN), multi-gig LAN, a handful of cameras, maybe a UniFi phone, a home office that VPNs out with WireGuard — this is Ubiquiti’s home turf and the UCG-Fiber is the only box in this comparison that can be the gateway and the NVR. A single Ubiquiti console replaces a Cloud Key, a mini NVR box, and a power brick for the doorbell/phone system. When a client asks me to keep it simple and consolidate into one box while keeping 10G growth room, the UCG-Fiber is what goes on the quote. Practical install notes: budget the NVMe storage at Protect camera count from day one (UBNT publishes per-camera/day retention math — get it right at quote, not at go-live), and remember the 30W PoE budget runs roughly one 4K cam or one access point before it is done — it is a convenience port, not a switch replacement.

Use Case Two: The Multi-Site SMB Spoke (Home Turf for Fusion)

Fifteen retail stores or clinic locations with fiber/cable combos at each site, no on-site IT, no rack space, no appetite for monthly management fees on a $300 device. This is exactly what Fusion was aimed at: Bluetooth adoption gets a tech in and out in under an hour, the touchscreen handles “is the internet up?” questions without opening an app, full-mesh SD-WAN links the sites with per-policy failover, and the free cloud controller keeps HQ visibility without licensing per device. Ubiquiti can do all of this through UISP/UniFi cloud and Site Magic, but the TCO math on a 5-20 site all-Tp-Link or mixed fleet lands in TP-Link’s favor for many SMB clients — as long as nobody on the design team needs BGP. Practical install notes: the magnetic mount plate and rack kit are optional purchase items on the Fusion — order them with the quotes, not after. And test failover on all WAN combinations before handover; dual-fiber plus LTE failover chains behave differently depending on subnet design, and the touchscreen makes field troubleshooting visible to the client, which goes a long way in the trust department.

Use Case Three: Mixed Fleets Are the Real World

The honest integrator’s answer: a lot of my clients want UniFi WiFi/Protect and are perfectly fine with an Omada edge (and vice versa). UniFi has ONVIF support and TP-Link devices speak standard VPN protocols, so a UCG-Fiber + UniFi AP/Protect site can terminate IPsec/WireGuard tunnels with an Omada fleet across the WAN. What does not work: adoption. UCG-Fiber cannot adopt Omada devices and Fusion cannot adopt UniFi devices, so a mixed shop means two management planes — and if the client wants single pane of glass, that answers the question at the start of the project.

VPN and Remote Access Detail

Both boxes do site-to-site and client VPN, but the toolkits are different in kind. Ubiquiti ships every tunnel type you would name — WireGuard, OpenVPN, IPSec, L2TP — on both sides (server and client), plus the party tricks that save installer hours: Teleport spins a VPN between two UniFi sites with two clicks, Site Magic does the same for SD-WAN policies, and Identity one-click VPN hands remote users a single button. The integrated RADIUS server (with RadSec) matters when Wi-Fi enterprise auth lives at the edge — nothing else in this price class does it natively.

TP-Link’s LightLink VPN is the equivalent single-click story for Fusion: smart split tunneling decides what rides the tunnel, keeping latency-sensitive traffic on the local internet. IPsec site-to-site is measured around 1 Gbps on the Fusion 2.5G — which is still more tunnel throughput than most SMB circuits ever fill, and there’s OpenVPN for client connections. The difference is ceiling: if one day a client needs BGP peering on the gateway or dynamic routing protocol support, UniFi says yes and Omada at this tier says “static routes, thanks.”

On security posture: both do DPI, layer-7 app ACLs, content filtering and ad blocking. UniFi’s edge is signature volume (CyberSecure subscription layers 55,000+ IPS signatures and cloud threat intel when enabled) and zone-based firewall granularity. TP-Link’s edge is that Auto QoS and app-based policies are one-click — deliberately built for the owner-operator who is not going to read a firewall manual.

Bottom Line

Buy the UCG-Fiber when: the site is UniFi-native or UniFi-leaning; fiber/multigig throughput is real; you want cameras, access, and telephony on the same box; or the client’s IT staff lives inside one controller and wants the depth (RADIUS, dynamic routing, app-level policies). You’re paying for a quad-core application host, not just a router.

Buy the Omada Fusion 2.5G when: the site is small, switch-free or PoE-switch-free (the PoE model for the latter), operations-thin on staffing, and the value is zero-config cloud plus the touchscreen. It’s the best $170 cloud-managed 2.5G edge I can spec this year for a small multi-WAN site, and the no-license business model is a genuine reason to standardize on it across a distributed SMB fleet.

They’re both excellent boxes pointed at different problems. Put both in the proposal if a client is truly ecosystem-agnostic — but read the spec sheet honestly and put the right one first.

If you’re weighing these options for a deployment and want the install to be done right the first time, reach out and let’s talk.

Sources: Ubiquiti techspecs.ui.com and store.ui.com for UCG-Fiber; omadanetworks.com and TP-Link datasheet for the Omada Fusion 2.5G family; independent lab throughput figures via lazyadmin.nl review of the Fusion 2.5G (June 2026). Product images are courtesy of Ubiquiti Networks and TP-Link Systems and are used under editorial fair use.