Ubiquiti NanoBridge 5G25 NB-5G25 in Dubai, UAE
The NanoBridge M5-25 combines a 5 GHz airMAX radio with a 25 dBi directional dish for outdoor point-to-point and selected point-to-multipoint applications. It is now primarily relevant to legacy-network maintenance, like-for-like replacement discussions, and projects where compatibility with an existing airMAX M installation must be preserved.
Direct answer for buyers
The Ubiquiti NanoBridge NB-5G25 is an outdoor 5 GHz directional wireless device built around the earlier airMAX M platform. It is mainly used to carry Ethernet traffic over a clear line-of-sight radio link, commonly between two buildings or from a central access point to a remote location. Organisations should consider it when maintaining an existing installation, replacing a failed matching unit, or assessing whether a legacy link can remain in service. Before proceeding, confirm the exact regional model, legal frequency range, passive PoE arrangement, Ethernet speed requirement, firmware compatibility, mounting hardware, link budget, and whether a newer PowerBeam, LiteBeam, or NanoBeam platform would be a more practical lifecycle choice.
What the NB-5G25 does
The device creates a directional wireless connection in the 5 GHz band. The radio and dish are designed as one outdoor system, reducing the need to select a separate antenna, feed, and enclosure. In a typical point-to-point arrangement, one unit is installed at each end of the path. Each unit connects by Ethernet to a local switch, router, camera network, or other IP equipment, allowing the wireless path to act as a bridge between the two wired segments.
Its directional pattern concentrates radio energy toward the far endpoint. This can improve link budget and reduce reception of unwanted signals from directions outside the main beam, but it also means alignment must be accurate. A high-gain dish does not remove the need for line of sight, correct channel planning, safe mounting, or a realistic assessment of the Fresnel zone around the path.
Who should consider it
The NB-5G25 may be appropriate for IT teams supporting older Ubiquiti airMAX M networks, wireless internet operators maintaining existing customer links, facilities teams connecting separate buildings, or project owners seeking a replacement that matches an installed radio. It can also appear in refurbishment, spare-unit, and compatibility-driven procurement requests.
It should not be selected automatically for a new high-throughput link. Its Fast Ethernet interface can become the practical ceiling for wired traffic, while current Ubiquiti platforms may offer improved processors, interfaces, mechanical design, noise handling, and ongoing availability. FourTeck can help compare the risk and cost of preserving the legacy platform against moving both endpoints to a newer matched pair.
Business challenges this directional bridge can address
Connecting separate buildings
A wireless bridge can avoid trenching fibre or copper across roads, yards, leased space, or areas where civil work is difficult. The path still requires survey, mounting access, power, grounding, and suitable line of sight.
Extending an IP camera network
The link may carry traffic from remote cameras or an edge switch back to the main network. Camera count, bitrate, link margin, Ethernet capacity, multicast behaviour, and power design must be calculated rather than assumed.
Maintaining an installed airMAX M link
A matching spare may reduce immediate reconfiguration work, yet firmware age, radio regulations, mounting condition, and the availability of genuine replacement units should be reviewed before a purchase decision.
Reaching temporary or remote sites
Construction compounds, farms, event locations, workshops, and security posts can sometimes be connected without permanent cabling. The expected project duration and equipment lifecycle should guide whether a legacy model is sensible.
Core platform characteristics
Product-fit decision matrix
| Requirement | Suitable when | Confirm before ordering |
|---|---|---|
| Legacy replacement | The existing endpoint uses a compatible NanoBridge or airMAX M configuration. | Firmware, regional version, antenna alignment, and configuration backup. |
| Building-to-building bridge | There is clear line of sight and traffic fits within the platform and Fast Ethernet limits. | Distance, Fresnel clearance, interference, mast height, and throughput target. |
| Remote camera connection | Aggregate video bitrate and network overhead remain comfortably below usable link capacity. | Camera count, codec, frame rate, recording pattern, and switch design. |
| New greenfield network | Only after comparison with current directional airMAX products and lifecycle requirements. | Modern alternatives, Gigabit interface needs, support horizon, and total replacement cost. |
Verified and buyer-relevant specifications
The following details are based on historical NanoBridge M documentation and model-specific references. Radio channels and output power are regulated by country. Units offered in the market may differ by regional code, age, hardware revision, packaging, or included accessories, so the exact item must be checked against the quotation.
| Brand | Ubiquiti |
|---|---|
| Product name | NanoBridge M5-25 |
| Model / product ID | NB-5G25 |
| Product type | Outdoor directional 5 GHz wireless bridge / CPE |
| Antenna gain | 25 dBi integrated dish |
| Historical operating range | 5470–5825 MHz in historical model documentation; permitted channels are region dependent |
| Maximum radio output | Up to 25 dBm at lower MCS rates in historical documentation; configured output is regulation and rate dependent |
| Processor | Atheros MIPS 24KC, 400 MHz |
| Memory | 32 MB SDRAM and 8 MB flash |
| Network interface | One 10/100 Ethernet port |
| Power method | 24 V passive PoE, pairs 4/5 positive and 7/8 return |
| Maximum power consumption | Approximately 5.5 W |
| Dish diameter | Approximately 400 mm |
| Mounting | Pole mounting; confirm hardware supplied with the offered unit |
| Operating environment | Outdoor enclosure; historical references indicate -30°C to 75°C and 5–95% non-condensing humidity |
| Management | airOS for the applicable airMAX M firmware branch |
| Current lifecycle and availability | Legacy model; contact FourTeck to confirm supply, condition, regional code, and suitable current alternatives |
| Warranty guidance | Depends on the quoted source, unit condition, and current supplier terms; must be stated in the quotation |
Compatibility and lifecycle notice
NB-5G25 is not a 5G cellular device. The “5G” in the model name refers to its 5 GHz radio band. This distinction matters when a procurement request is based only on a model description. The device belongs to an older airMAX M generation and may not deliver the management features, wired speed, spectrum efficiency, or lifecycle position expected from a current platform.
A replacement project should verify whether the other endpoint must remain unchanged. Mixing generations can introduce protocol, firmware, channel-width, security, or management limitations. For a new point-to-point link, replacing both ends with a matched current pair is often easier to support than sourcing one legacy unit, but the correct decision depends on site access, downtime tolerance, budget, and the surrounding network.
A practical purchase and deployment journey
Confirm the reason for selecting NB-5G25
Identify whether this is a failed-unit replacement, a spare requirement, an expansion of an existing network, or a proposed new link. The answer changes the replacement strategy.
Review the path and traffic
Check distance, line of sight, Fresnel-zone clearance, nearby 5 GHz activity, intended channel width, and real traffic demand. Throughput should be evaluated end to end, not from a headline wireless rate.
Verify the bill of materials
Confirm radios, passive PoE injectors, shielded outdoor cable, surge protection, grounding, poles or brackets, enclosure requirements, switches, and any replacement endpoint.
Plan installation and commissioning
Include safe access, mast stability, cable routing, weather sealing, alignment, channel selection, management addressing, security settings, testing, and documentation.
Record the operating baseline
After deployment, record signal levels, noise floor, modulation rates, capacity tests, firmware version, channel, width, power, antenna alignment, and switch-port status for future troubleshooting.
Directional gain and link planning
The 25 dBi dish is the defining physical characteristic of the NB-5G25. Antenna gain helps establish a stronger link budget in the intended direction, but it narrows the useful beam and increases the importance of alignment. A radio can show adequate signal while still providing unstable service if the path is partially obstructed, the noise floor changes, the mount moves in wind, or the selected channel overlaps strong neighbouring activity.
A proper assessment considers both endpoints, including antenna height, terrain, rooftop structures, trees, cranes, reflective surfaces, and the first Fresnel zone. The Fresnel zone is the three-dimensional space around the direct path that should remain reasonably clear for reliable propagation. Merely seeing the other roof or tower is not always enough. Long paths also require allowance for earth curvature, atmospheric effects, and mechanical alignment tolerance.
Transmit power should not simply be set to maximum. Regulatory limits may constrain effective isotropic radiated power, and excessive power can worsen network performance by increasing interference or creating an imbalanced link. FourTeck can help collect the site inputs needed for an initial discussion, while final installation decisions may require a qualified survey and on-site validation.
Ethernet capacity and realistic throughput
The single 10/100 Ethernet port is an important selection constraint. Even when the wireless connection reports a high air rate, application throughput must pass through this Fast Ethernet interface and will also be affected by protocol overhead, modulation changes, retransmissions, channel width, interference, and traffic direction. A buyer planning a high-resolution camera backhaul, shared office connection, or multiple remote users should calculate sustained peak demand rather than rely on an ideal laboratory figure.
For an existing link that already performs adequately, a direct replacement may restore service without redesigning the network. For a new deployment, however, choosing a platform with Gigabit Ethernet can create more headroom and reduce the chance that the wired interface becomes the first bottleneck. Switch configuration also matters. Speed and duplex negotiation, VLAN design, spanning tree, broadcast levels, and power delivery should be reviewed at both endpoints.
Performance expectations should be written into the project scope as measurable targets, such as usable bidirectional throughput, packet-loss tolerance, latency under load, and availability objectives. No wireless link can be guaranteed solely from product specifications because site conditions determine the final result.
Power, cabling, grounding, and outdoor reliability
The NB-5G25 uses 24 V passive PoE rather than standards-based 802.3af or 802.3at PoE. Passive PoE applies voltage to fixed cable pairs without the same negotiation used by standards-based systems. Connecting the wrong power source or wiring arrangement can damage equipment. The offered injector, cable length, cable quality, and any PoE switch or converter must therefore be checked carefully.
Outdoor cable should be UV resistant and suitable for the environment. Shielded cable and appropriate connectors can support grounding and improve resilience, but grounding must follow a coherent site design rather than isolated improvised connections. Surge protection is especially important where radios are installed on rooftops, poles, boundary walls, or exposed structures. A surge protector does not replace building lightning protection, correct earthing, or safe electrical practice.
Water ingress often begins at badly terminated connectors, damaged cable jackets, poorly formed drip loops, or enclosures that trap condensation. Installation scope should include weather sealing, strain relief, cable labelling, photographs, and a documented route. These practical details can influence reliability as much as the radio specification itself.
Suitable business environments
Warehouses and logistics yards
Link a remote gatehouse, security office, storage building, or camera pole where trenching is disruptive. Vehicle movement, metal structures, and future construction must be included in path planning.
Education and campus facilities
Connect an annex, sports area, workshop, or temporary classroom to a main network. Network segmentation, safeguarding policies, bandwidth demand, and support ownership should be defined.
Hospitality and leisure sites
Carry back-office, guest, operational, or surveillance traffic between separated structures. Service separation and peak-time demand are important because different applications may share one radio link.
Construction and project compounds
Provide temporary connectivity where cable routes will change. Equipment age, redeployment plans, mast stability, generator power quality, and dust exposure should be considered.
Farms and remote operations
Bridge offices, pumps, monitoring points, or security systems over open land. Long cable runs, lightning exposure, maintenance access, and seasonal vegetation can affect the design.
Legacy wireless service networks
Support existing subscriber or backhaul endpoints where changing one device may affect a wider configuration. Spare strategy and phased migration planning are often more valuable than a one-off purchase.
Buyer questions to resolve before ordering
Is the requested model exact?
Confirm NB-5G25 rather than NB-5G22, NanoBeam, PowerBeam, or another similarly named product.
Is this one endpoint or a complete pair?
A new point-to-point link normally needs compatible equipment at both ends.
What traffic will cross the link?
Document normal and peak demand, including camera streams, backups, cloud access, voice, and user traffic.
Can both locations see each other?
Provide coordinates, roof heights, photos, distance, and known obstructions.
Which regional code is required?
Available channels and power limits differ by jurisdiction and unit version.
Are passive PoE components available?
Confirm injector voltage, cable pairs, cable run, surge protection, and grounding.
Is the 100 Mbps port sufficient?
Allow for overhead and future traffic growth, not only today’s average load.
Would a current platform be safer?
Compare replacement cost, downtime, management, support horizon, and the option to change both endpoints.
Procurement checklist
How FourTeck can assist
FourTeck can review the procurement context before a quotation is prepared. This may include confirming the exact model, understanding whether it must connect to an installed endpoint, identifying required accessories, and comparing an NB-5G25 purchase with a matched replacement pair from a newer Ubiquiti range.
For project requests, buyers can discuss survey inputs, link-planning information, installation access, mounting, cable requirements, network configuration, testing, and documentation. These services are scope dependent and should be itemised in the quotation. Explore other business technology products or review available installation and support services.
Information that improves quotation accuracy
Send the model, quantity, destination, required delivery window, whether the equipment must be new, and any acceptable alternatives. For a link project, also provide coordinates, approximate heights, distance, photographs toward the opposite site, traffic requirement, switch details, and the expected installation scope.
Use the FourTeck contact page to start the requirement review. A quotation should clearly distinguish hardware, accessories, installation, configuration, testing, and support.
UAE availability and support guidance
Contact FourTeck to confirm current UAE availability for the Ubiquiti NanoBridge NB-5G25. Because this is a legacy model, supply may depend on remaining channel inventory, refurbished equipment, regional variants, quantity, and vendor or distributor lead time. The condition of the unit, serial information, packaging, included PoE injector, mounting parts, and warranty terms should be written into the quotation. Buyers should avoid treating a photograph or generic listing as proof that every component is included.
For deployment in Dubai or elsewhere in the UAE, delivery and project coordination can be discussed after the exact requirement is confirmed. Installation and configuration scope should be included in the quotation when required. FourTeck can also help evaluate newer alternatives where the original model cannot be sourced on acceptable terms. Visit the FourTeck UAE technology website for wider infrastructure assistance.
Dubai, Abu Dhabi, Sharjah, and Ajman coverage
FourTeck can coordinate requirement review, quotation, delivery planning, and scoped technical assistance for organisations in Dubai, Abu Dhabi, Sharjah, and Ajman. The exact support approach depends on whether the request is a straightforward hardware supply, a replacement of an installed radio, or a complete outdoor-link project. Site access, work permits, rooftop safety, cable pathways, mast condition, endpoint power, and testing expectations can change the work required. Buyers should provide the deployment addresses and contact details for each site so logistics and any technical visit can be discussed accurately. No installation date or equipment availability should be assumed until the model, quantity, scope, and project conditions have been confirmed.
GCC availability
FourTeck can assist organisations planning Ubiquiti wireless requirements across GCC markets, including the United Arab Emirates, Saudi Arabia, Kuwait, Qatar, Bahrain, and Oman. For the NB-5G25, the first step is to determine whether the buyer specifically needs this legacy model or would accept a current directional bridge selected for the same application. Requirement review may cover the destination country, regional radio code, required quantity, passive PoE accessories, mounting components, replacement compatibility, configuration scope, and expected project schedule. Product availability, permitted channels, delivery schedules, service visits, warranty terms, and vendor lead times can vary by country, model, quantity, and source. Buyers should provide the exact destination, endpoint details, traffic target, installation location, and any support expectation before a quotation is finalised. For enquiries involving Kuwait, FourTeck’s regional technology information may also support the discussion.
Africa availability
FourTeck can help businesses and project teams in Africa assess directional wireless products, legacy replacements, accessories, and deployment requirements. For an NB-5G25 enquiry, share the destination country, quantity, condition requirement, existing endpoint model, expected throughput, power arrangement, and preferred deployment schedule. Availability and fulfilment may depend on the source of the unit, regional firmware or radio restrictions, shipping arrangements, vendor lead time, local power and grounding conditions, installation access, and the ability to support an older platform. In many cases, it is worth comparing a legacy spare with a current matched radio pair before committing funds. FourTeck can coordinate product evaluation and quotation planning without assuming local inventory or a fixed delivery outcome. Organisations in East Africa can consult FourTeck’s Kenya technology resource, while wider project discussions can begin through the FourTeck Africa portal.
Related options and services to evaluate
Ubiquiti PowerBeam alternatives
Current or later-generation directional products may provide a more supportable path for a new link. Model selection must be based on distance, band, gain, Ethernet speed, and regional availability.
Ubiquiti LiteBeam options
LiteBeam models can suit cost-sensitive directional CPE or bridge roles. They are not automatic drop-in replacements; management, antenna gain, protocol, and endpoint compatibility must be checked.
Matched endpoint replacement
Replacing both ends can remove mixed-generation uncertainty and allow a planned configuration baseline. Downtime, mounting, cable, and switch implications should be included.
Outdoor wireless survey
A survey or structured remote assessment can identify visibility, mounting, interference, power, and access constraints before equipment is ordered.
Installation and alignment
Scoped assistance can cover safe mounting, outdoor cabling, PoE, weatherproofing, grounding coordination, alignment, configuration, and baseline testing.
Network integration support
VLANs, IP addressing, switch ports, monitoring, traffic validation, and documentation can be planned as part of the wider network rather than treated as isolated radio settings.
Why businesses contact FourTeck
Technology buyers often need more than a model number. They need to know whether the item is the correct regional version, whether it includes the expected accessories, whether it will work with the installed environment, and whether keeping an older product creates avoidable operational risk. FourTeck can help clarify these questions, coordinate a bill of materials, compare alternatives, define installation and configuration scope, and prepare a quotation around the actual business requirement.
This approach is especially useful for legacy wireless products because listings can remain online long after normal production or distribution has changed. A careful quotation should make the proposed supply source, condition, included components, warranty guidance, and alternatives clear. Learn more about FourTeck or contact the team with the deployment details.
Frequently asked questions
Is the NB-5G25 a cellular 5G device?
No. It is a 5 GHz outdoor wireless bridge from the airMAX M generation. The model naming predates modern 5G cellular terminology.
What is the main use of the NanoBridge M5-25?
It is mainly used for directional outdoor Ethernet bridging, such as connecting two buildings or linking a remote device network to a main site over a clear radio path.
Does a point-to-point link require two units?
Normally yes. A complete link needs a compatible radio at each endpoint. A single-unit purchase is commonly for replacement or connection to an existing compatible endpoint.
Can it connect to every newer Ubiquiti radio?
Compatibility should not be assumed. AirMAX generation, protocol mode, firmware, channel settings, region, and security configuration must be reviewed for both endpoints.
Is the 25 dBi dish suitable for long-distance links?
The gain supports directional link budgets, but achievable distance and reliability depend on line of sight, Fresnel clearance, interference, legal power limits, mounting, weather, and traffic expectations.
What PoE source does it use?
Historical specifications identify 24 V passive PoE. It is not the same as automatically negotiated 802.3af or 802.3at power, so the injector and wiring must be confirmed.
Is NB-5G25 recommended for a new high-speed link?
It should be compared with current alternatives first. The 10/100 Ethernet port, older processor, legacy firmware platform, and uncertain supply may make a newer matched pair more suitable.
What should be included in the quotation?
The quotation should identify unit condition, regional model, quantity, dish and feed, mounting parts, PoE injector, power cord, warranty guidance, delivery terms, and any installation or configuration services.
Can FourTeck help with installation?
Installation, alignment, cabling, configuration, and testing can be discussed as a separate project scope. Site access and technical requirements are needed before confirming the service.
How can I check current Dubai availability?
Send FourTeck the exact model, quantity, condition preference, destination, and required date. The team can then check the current purchasing route and suitable alternatives.
Confirm the correct wireless bridge before you order
Share your existing endpoint model, link distance, required throughput, quantity, and installation location. FourTeck can review whether the NB-5G25 is the correct legacy replacement or whether a newer matched solution offers a better operational fit.
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