MikroTik CRS112-8P-4S-IN in Dubai, UAE
The CRS112-8P-4S-IN combines eight Gigabit Ethernet PoE-out ports, four 1G SFP cages and RouterOS management in a compact, passively cooled enclosure. It is intended for buyers who need to connect and power edge devices while retaining fibre uplink choices, VLAN control and central switch management.
Before requesting a quote
List every powered device, its PoE standard and wattage, the fibre type, SFP distance and whether installation or RouterOS configuration is required.
For powered edge devices
For optical uplinks
48–57 V for 802.3af/at
No fan in normal operation
Direct answer: what is the CRS112-8P-4S-IN?
The MikroTik CRS112-8P-4S-IN is a managed Cloud Router Switch with eight 10/100/1000 Ethernet ports capable of PoE output and four SFP ports for 1 Gbps optical connectivity. It is mainly used as an access-layer switch where cameras, wireless access points, IP phones, small controllers or other Ethernet devices need data connectivity and power from one central unit. Small and medium organisations, integrators and branch-network planners should consider it when twelve independent switching interfaces and flexible PoE options match the site design. Before proceeding, confirm the exact PoE standard, voltage, total wattage, SFP module compatibility, fibre distance, rack or desktop location, RouterOS configuration scope and current regional availability.
What it does
It aggregates copper-connected devices, applies switching policies and provides fibre uplinks to another switch, router or building distribution point. RouterOS gives administrators access to VLANs, bridging, port controls, traffic management, monitoring and other network functions. The hardware is most naturally positioned as a switch; routing-heavy workloads should be sized carefully because its single-core 400 MHz CPU is not intended to replace a higher-performance edge router.
Who it suits
The model can fit offices, retail branches, schools, clinics, small hospitality sites, warehouses and surveillance systems that need a moderate number of powered Ethernet endpoints. It is particularly relevant where fibre uplinks are useful, fan noise should be avoided and an administrator already understands MikroTik RouterOS. It may be less suitable when 10 Gigabit uplinks, high PoE budgets, PoE++, very large camera counts or advanced Layer 3 performance are required.
Business challenges this switch can help address
Too many separate power adapters
Central PoE can reduce the number of individual power bricks at cameras, phones and access points. The benefit depends on matching voltage and power demand correctly.
Copper distance limitations
Four SFP cages allow optical uplinks to other cabinets or building areas where copper distance, interference or grounding considerations make fibre preferable.
Unmanaged network growth
RouterOS-based switching permits VLAN segmentation, monitoring and controlled port behaviour, helping replace an unmanaged switch when the business needs clearer network boundaries.
Limited cabinet space
The compact enclosure can be used on a desktop or mounted with the supplied hardware, subject to airflow, grounding and installation guidance.
Core capabilities at a glance
Eight copper ports support 10/100/1000 Mbps Ethernet for endpoint connectivity.
Supports passive PoE and, with a suitable 48–57 V input, autosensing 802.3af/at output.
Four SFP cages support compatible 1.25G SFP modules and uplinks up to 1 Gbps.
RouterOS Level 5 is preinstalled and licensed, providing detailed switch and network controls.
Product-fit decision matrix
| Requirement | Suitable when | Confirm before ordering |
|---|---|---|
| Powered edge devices | Up to eight devices fit the available ports and total power budget | PoE standard, voltage and watts per device |
| Fibre uplinks | 1 Gbps SFP connectivity is sufficient | Single-mode or multimode, connector, wavelength and distance |
| Managed segmentation | VLAN and bridge controls are needed | Required topology and administrator experience |
| Quiet operation | A passively cooled indoor switch is preferred | Ambient temperature, cabinet airflow and dust exposure |
| Routing functions | Routing demand is light and appropriately designed | Expected throughput, filters, queues and CPU load |
Verified technical information
| Brand | MikroTik |
|---|---|
| Product code | CRS112-8P-4S-IN |
| Product type | Managed Cloud Router Switch with PoE-out |
| Ethernet ports | 8 × 10/100/1000 Mbps, all with PoE-out capability |
| Fibre interfaces | 4 × SFP cages for compatible 1.25G modules, up to 1 Gbps links |
| CPU and architecture | QCA8511, single-core 400 MHz, MIPSBE |
| Memory and storage | 128 MB RAM and 16 MB flash storage |
| Operating system | RouterOS with Level 5 licence |
| PoE output | Passive PoE and 802.3af/at with suitable 48–57 V input; mode B pins 4,5 (+) and 7,8 (-) |
| PoE current limits | 1 A per port at low voltage; 450 mA per port at high voltage; total 2.8 A at 18–28 V or 1.4 A at 48–57 V |
| DC inputs | Two DC jacks: 18–28 V and 48–57 V |
| Included power supply | 28 V, 3.4 A adapter |
| Maximum power consumption | 160 W with PoE attachments; 10 W without attachments according to current product specifications |
| Cooling | Passive |
| Dimensions | 200 × 142 × 44 mm |
| Operating temperature | Tested from -20°C to +60°C |
| Ingress protection | IP20, indoor deployment |
| Included mounting items | Rack ears and K-48 fastening set |
| Availability | Contact FourTeck for current UAE options and vendor lead time |
Important power and compatibility notice
The included 28 V adapter does not by itself make every connected 802.3af/at device operable. Standard active PoE output requires a suitable 48–57 V DC supply connected to the appropriate input. With the supplied lower-voltage adapter, the switch can provide low-voltage passive PoE to compatible equipment. Passive PoE must be matched carefully because the receiving device must accept the supplied voltage and pin arrangement. A buyer should never assume that a camera, phone or wireless access point is compatible merely because it is described as PoE. Check the device data sheet, voltage range, IEEE standard, maximum draw and cabling. The total power budget also matters: eight ports do not guarantee that eight high-draw devices can all be powered simultaneously.
Purchase and deployment journey
Map connected devices
Record each endpoint, its port speed, PoE requirement, expected power draw and physical location.
Calculate power
Select the correct DC supply and retain headroom for startup draw, cable loss and future changes.
Choose SFP modules
Match fibre type, wavelength, connector, distance and the device at the far end of each link.
Define configuration
Document VLANs, trunks, access ports, management addressing, security and monitoring requirements.
Install and test
Mount, ground, update, secure and test every data and power connection before handover.
PoE planning for cameras, phones and access points
PoE planning should begin with the powered device rather than the switch port count. A surveillance camera may have a modest daytime draw but consume more power when infrared illumination, a heater or a motorised lens is active. A wireless access point may remain below its stated maximum during light use yet approach that figure under high client load or when all radios are active. An IP phone may also provide pass-through power to another device. For these reasons, the bill of materials should identify both typical and maximum consumption wherever the manufacturer provides those figures.
The CRS112-8P-4S-IN offers two distinct power-input ranges. The included 28 V adapter supports the switch and low-voltage passive PoE applications. A separate 48–57 V supply is needed for 802.3af/at detection and output. This distinction is central to purchasing. A deployment that uses standard PoE cameras should include the suitable high-voltage supply in the quotation rather than treating it as a later accessory. The switch can accept both inputs, but the final design should follow MikroTik guidance and the receiving-device requirements.
Cable quality also affects reliable power delivery. Long runs, undersized conductors, poor terminations and damaged connectors can increase voltage drop and create intermittent faults. The installation guide recommends shielded Cat6 cabling, while actual site requirements should follow local codes and the broader grounding design. FourTeck can help the buyer turn a device list into a port-and-power schedule, identify where injectors or alternative switches may be needed, and avoid assuming that every port can deliver the same result in every configuration.
Fibre uplinks and SFP selection
The four SFP cages are useful when the access switch must connect to another floor, cabinet, building or distribution switch over fibre. They can also provide multiple isolated uplinks or redundant physical paths, subject to the network design. The interfaces are intended for compatible 1.25G SFP modules, so buyers should plan for 1 Gbps optical links rather than SFP+ 10 Gbps service. A module that physically fits is not automatically the correct choice.
SFP selection requires a matched pair of specifications: multimode or single-mode fibre, transmit wavelength, receive wavelength, connector type and supported reach. Duplex LC modules usually use two fibres, while BiDi modules may use one strand but require complementary wavelengths at opposite ends. The remote switch must support the selected optic, and the optical power budget must suit the route. Existing patch panels, splice losses and connector cleanliness should be considered in longer paths.
For short links inside a cabinet, copper Ethernet may be simpler. For longer runs or electrically noisy environments, fibre can provide useful separation and distance. When requesting a quote, share the approximate length, fibre type already installed, connector presentation and model of the far-end device. FourTeck can then help identify suitable modules without presenting unrelated optics as guaranteed equivalents.
RouterOS management and operational control
RouterOS gives the CRS112-8P-4S-IN a broader management environment than a simple unmanaged PoE switch. Administrators can build bridges, create VLAN-aware switching, define access and trunk behaviour, monitor interfaces, apply management addressing and use MikroTik tools such as WinBox or WebFig. The device arrives with RouterOS licensed, and the official documentation describes a default switched configuration with a management address that should be changed or incorporated safely into the deployment plan.
Initial security work is important. The administrator should set a strong password, update RouterOS to a suitable stable release, restrict management access, disable unnecessary services and place management traffic on an appropriate network. Configuration backups and a documented recovery process should be retained. Where the switch is exposed through an upstream network, management should not be left broadly reachable.
Although RouterOS provides routing, firewall and queue features, the hardware platform is modest. The official performance tables show that software routing and filtering results are far below line-rate switching. This means the device should normally be selected for switching and PoE access, while demanding routing or firewall duties are assigned to a suitably sized router or security appliance. A careful design uses the switch chip for the traffic patterns it handles well and avoids loading the control-plane CPU with tasks beyond the requirement.
Ideal business environments and use cases
Small surveillance systems
Connect several IP cameras and use fibre to reach a recorder or core switch, provided the camera power budget and standards are confirmed.
Branch office access
Serve phones, printers, workstations and access points while using VLANs to separate business, voice and guest traffic.
Retail and hospitality
Support point-of-sale peripherals, cameras, phones and wireless access points in a compact managed network.
Education and clinic sites
Provide controlled access switching for classrooms, reception areas or small clinical branches where quiet operation is valuable.
Multi-cabinet links
Use SFP uplinks between cabinets where optical fibre is preferred over a long copper run.
Integrator project kits
Build a compact bill of materials that combines PoE switching, selected optics, mounting parts and configuration services.
Integration and operational considerations
A successful installation depends on more than the switch. The upstream router must provide the required Internet, firewall, DHCP, DNS and inter-VLAN routing services unless those functions are deliberately assigned elsewhere. The CRS112 can participate in Layer 2 segmentation, but the complete design should show which device is the default gateway and where security policy is enforced. For voice networks, confirm DHCP options, quality-of-service expectations and the phone vendor’s VLAN method. For cameras, confirm multicast, recorder bandwidth and time synchronisation. For wireless access points, confirm management platform, VLAN tags and maximum power draw.
Environmental conditions also matter. The product is an indoor IP20 device and should be protected from moisture, dust accumulation, direct heat and unsuitable outdoor exposure. Passive cooling eliminates fan noise but still requires reasonable ventilation. Rack mounting should use the correct brackets and secure grounding. Power should be provided through an appropriate protected circuit, and surge considerations should be reviewed where cables leave a building or connect equipment with different earth references.
Operationally, maintain an inventory of ports, cable labels, VLAN assignments, connected-device power, SFP types and configuration versions. Monitor interface errors and PoE status rather than waiting for a user complaint. Schedule software updates under change control. Keep a tested backup and note the Netinstall recovery procedure. These practices help turn a compact switch into a supportable business component rather than an undocumented point of failure.
Buyer questions to resolve before ordering
Provide exact endpoint models, speed requirements and whether they need power.
Confirm passive PoE voltage or IEEE 802.3af/at for every powered device.
Add maximum endpoint draw and include practical design headroom.
State fibre type, distance, connector, strand count and far-end equipment.
Document VLANs, trunks, access ports, management and gateway locations.
Decide whether supply-only, remote configuration or onsite assistance is required.
Procurement checklist
☐ Exact model: CRS112-8P-4S-IN
☐ Required quantity and destination
☐ Endpoint list and PoE standards
☐ Maximum watts per powered device
☐ 28 V passive or 48–57 V active PoE plan
☐ Required high-voltage power supply
☐ Fibre type and SFP module specification
☐ Rack, desktop or wall placement
☐ Grounding and cabling requirements
☐ VLAN and management design
☐ RouterOS update and security baseline
☐ Installation and configuration scope
☐ Warranty terms to confirm in quotation
☐ Delivery and project coordination expectations
How FourTeck can assist
FourTeck can help convert a general request for a PoE switch into a practical bill of materials. The review can cover endpoint count, PoE standards, total power, fibre uplinks, SFP choices, mounting, RouterOS configuration and integration with the existing router, firewall, wireless network or surveillance system. This is useful when the buyer knows the model name but has not yet confirmed whether the included power adapter suits the connected equipment.
For supply-only requests, share the exact quantity and destination so current availability and lead time can be checked. For project requests, include a port schedule, floor plan or simple topology, preferred VLAN structure and any need for installation, migration or testing. FourTeck can coordinate a quotation that separates hardware, optional power supplies, SFP modules, cabling and professional services, making it easier for procurement teams to compare the complete requirement rather than only the base switch.
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UAE availability and support guidance
Contact FourTeck to confirm current UAE availability for the MikroTik CRS112-8P-4S-IN, suitable power supplies, SFP modules and project accessories. Availability may depend on quantity, vendor lead time and the exact bill of materials. Delivery and project coordination can be discussed after the requirement is confirmed. Installation and configuration scope should be included in the quotation when required, especially where VLAN design, fibre integration or PoE validation is part of the project.
FourTeck can coordinate enquiries covering Dubai, Abu Dhabi, Sharjah and Ajman through one combined requirement review. Buyers should provide the destination, quantity, connected-device list, preferred timeline and any site access limitations. This allows the quotation to reflect hardware and service dependencies without implying guaranteed stock or a fixed installation date. Use the FourTeck contact page to share the requirement.
GCC Availability
FourTeck can assist organisations planning CRS112-8P-4S-IN deployments across GCC markets by reviewing the exact switch quantity, PoE voltage, power budget, SFP requirements and configuration scope before quotation. This is particularly important for regional projects because power accessories, plug types, fibre modules, delivery routes and service arrangements may differ between the United Arab Emirates, Saudi Arabia, Kuwait, Qatar, Bahrain and Oman. Product availability, vendor lead time, licensing position, delivery schedule and onsite service options can vary by country and project. Buyers should share the destination country, required quantity, endpoint list, desired SFP modules, deployment location and expected timeline. FourTeck can then coordinate model confirmation, quotation, delivery planning and technical-service scope. No assumption should be made about local stock, customs outcomes or fixed installation dates until the requirement has been reviewed. For Kuwait enquiries, buyers may also visit FourTeck Kuwait technology support.
Africa Availability
For African deployments, FourTeck can help businesses and integrators evaluate whether the CRS112-8P-4S-IN fits the endpoint count, PoE requirements, fibre design and local installation conditions. Regional procurement should consider destination, available mains power, plug requirements, surge protection, fibre standards, shipping arrangements, vendor lead time and the availability of qualified installation support. A low-voltage passive PoE design that works in one project should not be copied automatically into another site using 802.3af/at cameras or access points. Buyers should provide the destination country, exact quantity, connected-device models, required accessories and preferred schedule. FourTeck can assist with quotation coordination, configuration scope, renewal or support planning where relevant, but fulfilment and onsite coverage depend on the location and project conditions. Organisations in East Africa can review FourTeck Kenya, FourTeck Uganda and the wider FourTeck Africa technology portfolio.
Related options and services
48V2A96W power supply
A 48 V, 2 A accessory option for deployments that require active PoE output. Confirm total power needs before selection.
Compatible 1G SFP modules
Select optics according to fibre type, wavelength, connector and distance rather than choosing by connector appearance alone.
Higher-capacity PoE switches
Consider a larger or newer model when more ports, greater PoE budget, 10G uplinks or stronger Layer 3 performance is required.
Router and firewall integration
Pair the access switch with a correctly sized gateway for Internet routing, security policy and inter-VLAN services.
Installation and configuration
Include rack mounting, grounding, VLAN setup, RouterOS hardening, firmware update and endpoint testing where needed.
Why businesses contact FourTeck
Businesses contact FourTeck when they need help clarifying whether a named model actually fits the project. For this switch, the key questions are usually not limited to the eight-port count. They include power voltage, active versus passive PoE, total endpoint draw, fibre-module compatibility, VLAN design and responsibility for installation. FourTeck can review these points, organise the bill of materials and coordinate a quotation that distinguishes included items from optional accessories.
This practical approach is useful for procurement teams that want to avoid receiving a switch without the correct high-voltage supply or optics. It also helps technical teams communicate the configuration and testing work required after delivery. To learn more about the company, visit about FourTeck.
Frequently asked questions
Does the CRS112-8P-4S-IN support standard PoE?
Yes. It supports autosensing 802.3af/at output when a suitable 48–57 V DC power supply is used. The included 28 V adapter is intended for the switch and low-voltage passive PoE applications.
Is the 48 V power supply included?
No. The standard package includes a 28 V, 3.4 A adapter. A suitable 48–57 V power supply must be selected separately when active 802.3af/at output is required.
Can all eight ports power devices at once?
They can provide PoE output, but simultaneous operation depends on the total current limit, input voltage, cable loss and each endpoint’s maximum draw. A power-budget calculation is required.
Are the SFP ports 10 Gigabit?
No. The four cages are for compatible 1.25G SFP modules and provide optical links up to 1 Gbps. Buyers needing 10G uplinks should consider another switch.
Does it include RouterOS?
Yes. RouterOS with a Level 5 licence is preinstalled. Administrators should update the software, set credentials and apply an appropriate management-security baseline.
Can it be used as the main router?
RouterOS offers routing functions, but the 400 MHz single-core platform is primarily suited to switching. Demanding routing, firewall or queue workloads should be assigned to a correctly sized gateway.
Is the switch fanless?
Yes. It uses passive cooling. It still requires an indoor location with reasonable ventilation and protection from moisture, excessive dust and heat.
Which SFP module should I order?
The choice depends on single-mode or multimode fibre, connector, wavelength, required distance and the device at the opposite end. Share these details for a compatible recommendation.
Can FourTeck configure VLANs and PoE?
Configuration assistance can be included according to project scope. Provide the desired VLANs, trunk ports, management network, powered-device list and handover requirements.
How do I request UAE price and availability?
Send FourTeck the exact model, quantity, destination, required power supply, SFP modules and service scope. Current availability and quotation can then be coordinated.
Confirm the complete CRS112-8P-4S-IN requirement
Share your endpoint models, PoE demand, fibre details, quantity and deployment location. FourTeck can coordinate product selection, accessories, configuration scope and a current UAE quotation.
