Power planning for extended Ethernet deployments
MikroTik MT48-570080-11DG in Dubai, UAE
A 57 V, 0.8 A power supply designed for MikroTik GPEN-oriented deployments where long Ethernet runs and multiple compatible GPeR units need careful power-budget planning.
Before requesting a quote
Confirm the powered device, cable distance, number of GPeR units, DC input range, connector type, local plug requirement and installation environment. This adapter should be selected as part of a complete power design, not only by voltage.
Officially stated output voltage
Power budget must still be checked
Built for extended Ethernet concepts
Availability confirmed per request
Direct answer: what is the MT48-570080-11DG?
The MikroTik MT48-570080-11DG is a 57 V, 0.8 A AC-to-DC power adapter positioned by MikroTik for long Ethernet cable runs and deployments that may include multiple GPeR units in its GPEN concept. It is mainly considered by network installers, internet service providers, property-network teams and integrators building extended copper Ethernet paths. A buyer should confirm that the chosen receiving equipment accepts the adapter’s voltage, that the connector and polarity are correct, and that the full route remains within the current and power limitations of every injector, repeater, switch and endpoint. The project should also account for cable category, conductor quality, distance, mounting conditions and the required regional mains plug.
What it does
This power supply converts mains electricity into a 57 V DC output rated at 0.8 A. Its higher output voltage is useful in network-power designs where voltage drop over extended copper cabling needs to be considered. Within MikroTik’s GPEN approach, it can support planning for multiple GPeR devices across a longer Ethernet path, subject to the topology and the limits of every connected component.
Who it suits
It is most relevant to experienced installers and organisations that already know which MikroTik GPEN or compatible device will receive the power. It can suit apartment-building networks, managed properties, campuses, warehouses and service-provider access links where ordinary copper segment limits require a carefully designed extension method. It is not a universal replacement adapter for any 48 V or 57 V device.
Business challenges this power supply helps address
Voltage loss over distance
Long copper runs can reduce the voltage available at the far end. A 57 V source can form part of a design intended to preserve usable voltage across an extended route, but cable resistance and current demand must be calculated.
Multiple repeater stages
A chain containing multiple GPeR units needs enough source power for the repeaters and the final endpoint. The adapter can support such planning, while the actual number of stages depends on cable quality, distances and the connected load.
Simpler access infrastructure
Some projects prefer Ethernet-based building distribution rather than a passive optical network at every stage. MikroTik’s GPEN concept targets this type of practical access design, although it does not make copper identical to fibre in reach, isolation or capacity.
Replacement and standardisation
Teams maintaining several compatible links may use an exact part number to simplify spares planning. Before standardising, procurement should verify the hardware revision, plug style, connector dimensions, polarity and destination-country electrical requirements.
Product-fit decision matrix
| Requirement | Suitable when | Confirm before ordering |
|---|---|---|
| Long Ethernet route | The design uses compatible MikroTik GPEN components and needs a high-voltage DC source. | Total route length, cable type, voltage drop and endpoint load. |
| Several GPeR units | The planned chain remains inside the vendor’s distance and current guidance. | Number of repeaters, segment lengths and power consumed along the path. |
| PoE-powered endpoint | The injector and endpoint accept the relevant voltage and PoE method. | Passive versus standards-based PoE, port current limit and device maximum input. |
| Replacement adapter | The original requirement exactly matches 57 V, 0.8 A and the physical connector. | Polarity, barrel size, regional plug and original equipment specification. |
Verified product information
| Brand | MikroTik |
|---|---|
| Product code | MT48-570080-11DG |
| Product type | AC-to-DC wall power supply for compatible networking equipment |
| DC output voltage | 57 V |
| Rated output current | 0.8 A |
| Calculated maximum DC output | 45.6 W based on 57 V × 0.8 A; usable endpoint power may be lower because of conversion loss, cable loss and component limits. |
| Primary application | Long Ethernet cable runs and multiple GPeR units within supported MikroTik GPEN designs |
| Connector | Confirm exact barrel dimensions and polarity before ordering |
| Mains plug | Region dependent; confirm UAE-compatible supply arrangement |
| Licensing | No software license is normally associated with a power adapter |
| Availability | Contact FourTeck for current UAE options, quantity support and vendor lead time |
| Warranty guidance | Confirm current terms, supplier conditions and return process in the quotation |
Compatibility and power-budget notice
The voltage and current printed on a power supply are only the starting point for compatibility. The receiving device must accept 57 V DC, the polarity and connector must match, and any intermediate injector, switch or repeater must remain within its own input and output limits. A device that accepts a broad voltage range may still impose a per-port current ceiling. In addition, the endpoint does not receive the full theoretical 45.6 W after cable and conversion losses. For multi-stage GPeR deployments, use the official GPEN planning guidance and calculate each cable segment rather than assuming every installation will support the same number of repeaters.
A practical purchase and deployment journey
Map the topology
Document the power source, injector, repeaters, cable segments and final network device.
Calculate the load
Add the power needs of all active components and allow for losses along the copper path.
Check hardware limits
Verify voltage ranges, current limits, PoE mode, connector and environmental requirements.
Confirm supply scope
Agree quantity, regional plug arrangement, related accessories and installation responsibilities.
Test before handover
Measure voltage at the far end, verify link stability and document the final powered configuration.
Power delivery across extended copper links
The central reason to consider the MT48-570080-11DG is its role in a higher-voltage power design. Copper conductors have resistance, so a powered device at the far end of a long cable does not see exactly the same voltage that leaves the adapter. The amount lost depends on conductor gauge, material, cable length, current and connector quality. Higher source voltage can reduce the current required for a given power level, which can help control voltage drop, but this does not eliminate electrical limits.
For a reliable design, the installer should use good-quality cabling, avoid unknown copper-clad aluminium where power delivery is important, minimise unnecessary joints and test the actual voltage under load. The power requirements of repeaters and the endpoint must be considered together. A link that operates on the bench with short patch leads may behave differently after installation across several floors or outdoor pathways. FourTeck can review the planned distances and associated MikroTik equipment before the bill of materials is finalised.
Using the adapter within a MikroTik GPEN design
MikroTik describes this adapter as part of its GPEN concept, an Ethernet-based approach intended to offer a practical alternative for certain building-access deployments. In this architecture, GPeR units can extend Ethernet by creating additional cable hops. The MT48-570080-11DG provides the power source that may allow several compatible devices to operate along the route. The design is especially relevant where running fibre to each intermediate point is difficult or where existing copper pathways are being used.
Buyers should not interpret GPEN as a direct technical equivalent to every GPON architecture. Fibre and copper have different distance, electromagnetic, isolation, bandwidth-sharing and environmental properties. The right choice depends on the building, existing containment, network ownership model, service-level expectations and future capacity. The adapter is therefore one component of a wider access solution. A quotation should identify the related injector, repeaters, endpoint hardware, enclosures, surge protection and labour scope where applicable.
Operational reliability and maintenance planning
A power adapter may be inexpensive compared with the network it supports, yet its failure can interrupt every downstream component. For business and service-provider deployments, the unit should be installed where it remains ventilated, protected from moisture, accessible to technicians and clearly labelled. Avoid placing it under insulation, inside an unsuitable sealed box or next to sources of excessive heat. The mains outlet should be secure and appropriate for the installation environment.
Maintenance teams should record the exact part number rather than describing it only as a “MikroTik adapter.” A 24 V, 48 V and 57 V supply may appear similar while being electrically unsuitable for one another. Keeping an approved spare can reduce recovery time, but procurement should ensure that the spare matches the connector, polarity, output and regional plug. In critical sites, power resilience may also require UPS coverage, surge protection and documented restart procedures. These items are outside the adapter itself and should be scoped separately.
Suitable business environments and use cases
Multi-floor residential buildings
Extended Ethernet pathways may be used to reach communications points across floors when the full GPEN design has been validated.
Commercial properties
Property operators may use compatible powered extensions for managed access links, tenant connectivity or building systems where the topology is suitable.
Warehouses and compounds
Long cable paths between network cabinets and remote points can make power planning important, particularly when intermediate repeaters are required.
Internet service-provider access
ISPs may consider GPEN components for selected customer-access designs where copper extension is operationally and commercially appropriate.
Integration and installation considerations
Integration begins with the actual device that will receive power. Confirm its DC input range and maximum consumption from the exact hardware documentation. Where power passes through a PoE injector or switch, check whether the system uses passive PoE or IEEE 802.3af/at behaviour and whether the voltage is presented on the expected pairs. Never assume that a connector that physically fits is electrically correct.
Cable routes should be assessed for length, conductor quality, bend radius, joint count and exposure to electrical interference or lightning risk. Outdoor links may require correctly rated enclosures and surge protection at appropriate points. The MT48-570080-11DG itself should remain in a suitable indoor location unless a complete protective housing has been designed. Installers should test the far-end voltage and network performance under realistic load, then label the power source so it is not replaced with a lower-voltage unit during future maintenance.
Buyer questions to resolve before ordering
The model determines whether 57 V input, the connector and available current are appropriate.
Total route length alone is not enough when several GPeR units create separate hops.
Every repeater and endpoint contributes to the source power requirement.
Passive PoE and standards-based PoE should not be treated as interchangeable.
Outdoor and inter-building copper links need a broader electrical-risk review.
Clarify whether the request is supply only or includes design review, installation and testing.
Procurement checklist
✓ Exact part number: MT48-570080-11DG
✓ Required quantity and spare quantity
✓ Destination and regional mains-plug requirement
✓ Powered device model and hardware revision
✓ DC connector dimensions and polarity
✓ Cable category, conductor type and segment lengths
✓ Number of GPeR or other powered components
✓ Injector or switch PoE method and current limits
✓ Final endpoint power consumption
✓ Indoor, cabinet or protected mounting location
✓ Surge protection and UPS expectations
✓ Installation, testing and documentation scope
✓ Warranty and return terms in the quotation
✓ Required project schedule and vendor lead-time tolerance
How FourTeck can assist
FourTeck can help business buyers move from a part-number request to a more dependable bill of materials. The review can cover the exact adapter, quantity, target MikroTik equipment, compatible GPEN components, cable distances and whether the requested topology is realistic. This is particularly useful when the adapter is being selected for a new multi-stage Ethernet path rather than as a like-for-like replacement.
The quotation can also identify related requirements such as GPeR units, injectors, suitable enclosures, surge protection, mounting accessories and installation support, subject to compatibility confirmation. For wider network projects, buyers can browse FourTeck technology products, review available network and infrastructure services, or contact the Dubai sales team with the complete requirement.
UAE availability and support guidance
Contact FourTeck to confirm current UAE availability for the MikroTik MT48-570080-11DG. Supply status can depend on quantity, regional plug arrangement, distributor allocation and vendor lead time. Delivery and project coordination can be discussed after the exact requirement is confirmed. Buyers that need installation, cable testing or GPEN design assistance should ask for that scope to be included in the quotation rather than assuming it is part of the adapter price.
FourTeck can coordinate enquiries covering Dubai, Abu Dhabi, Sharjah and Ajman in one combined requirement. Share the delivery location, number of units, target equipment, cable route and preferred schedule. For projects involving several branches or properties, provide a site-by-site quantity and topology so the power supply, related components and service scope can be reviewed consistently.
GCC Availability
Organisations planning MikroTik GPEN or extended Ethernet deployments across the GCC can ask FourTeck to review the MT48-570080-11DG as part of the complete requirement. Support may include model confirmation, power-budget discussion, quotation coordination, accessory identification and planning for installation or testing where those services are required. Projects in the United Arab Emirates, Saudi Arabia, Kuwait, Qatar, Bahrain and Oman may have different supply routes, mains-plug expectations and lead times. Product availability, delivery schedules, service visits and project scope can vary by country, quantity and destination. To obtain useful guidance, provide the destination country, number of adapters, receiving-device model, number of GPeR units, cable distances and target deployment date. FourTeck can then help identify the points that need confirmation before procurement. For Kuwait-related enquiries, the FourTeck Kuwait information portal may also support regional coordination.
Africa Availability
FourTeck can assist organisations evaluating the MikroTik MT48-570080-11DG for selected projects in Africa, including service-provider access networks, managed buildings and extended copper Ethernet links. Regional planning should include the exact destination, quantity, local mains connection, powered equipment, cable design and expected support scope. Fulfilment can depend on vendor lead time, shipping arrangements, destination-country requirements and whether related MikroTik components are being sourced in the same bill of materials. Installation conditions may also differ where heat, humidity, lightning exposure or unstable mains power require extra protection. Buyers should share the preferred deployment schedule and any need for configuration, testing or remote guidance. FourTeck can help review requirements through its Africa technology portal, with additional information available for Kenya projects and Uganda technology requirements.
Related products and services to consider
MikroTik GPeR
A Gigabit passive Ethernet repeater used to create additional copper cable hops. Confirm the supported chain and power calculations.
MikroTik GPEN11
A wall-mountable injector within the GPEN concept. Its input range and PoE output behaviour should be checked for the target design.
GPeR outdoor case
An enclosure option may be relevant where a repeater is exposed to environmental conditions. Suitability depends on the installation.
Surge protection
Outdoor or inter-building copper paths may require coordinated Ethernet and mains protection designed for the actual site.
Network installation support
Site assessment, cable testing, mounting and handover can be scoped through FourTeck when supply-only procurement is not enough.
Why businesses contact FourTeck
Buyers often need more than a price for a single adapter. FourTeck can help clarify whether the requested power supply matches the intended equipment, whether the GPEN chain has been planned correctly and which related items should appear in the quotation. This reduces the risk of ordering the right part number for the wrong topology. Assistance can also cover quantity planning, compatibility review, delivery coordination, installation scope and documentation expectations without making unsupported promises about stock or project completion dates. Learn more about FourTeck or submit the project details through the contact page.
Frequently asked questions
What is the output of the MT48-570080-11DG?
It is rated at 57 V DC and 0.8 A. The theoretical maximum output is 45.6 W, although less power may reach the endpoint after losses and equipment limits.
Is this a universal replacement for any MikroTik adapter?
No. Voltage, current, connector, polarity and the receiving device’s permitted input must all match. Use the exact hardware documentation before substitution.
Can it power several GPeR units?
MikroTik positions it for long runs and multiple GPeR units, but the supported number depends on cable lengths, cable quality, endpoint load and the limits of every component.
Does it include a software license?
A power supply normally has no software licensing requirement. Licenses for other network products, where applicable, should be reviewed separately.
Can it be installed outdoors?
The adapter should be placed in an environment suitable for its construction. Outdoor use requires a properly designed enclosure and wider electrical-protection review.
Does a 57 V source guarantee 45.6 W at the far end?
No. Cable resistance, connector losses, conversion efficiency and port current limits reduce the power available to the endpoint.
What information is needed for a quotation?
Provide quantity, destination, powered-device model, injector or switch model, cable distances, number of repeaters and any installation or testing scope.
Is the adapter currently available in Dubai?
Current availability should be confirmed with FourTeck because supply can vary by quantity, regional plug arrangement and vendor lead time.
Can FourTeck help with GPEN design?
FourTeck can review the stated requirement and help scope compatible products, cable planning and installation support, subject to project details.
Confirm the power design before ordering
Send FourTeck the powered-device model, cable distances, GPeR quantity and delivery location for an accurate MT48-570080-11DG quotation and compatibility discussion.
