MikroTik netFiber 9 Outdoor 10G Fiber Switch
MikroTik netFiber 9 is an outdoor-oriented fiber networking switch designed for high-speed optical connectivity using a combination of Gigabit Ethernet, 1G SFP and 10G SFP+ interfaces. Its exact manufacturer product code is CRS310-1G-5S-4S+OUT. The switch is designed for network deployments where fiber connections need to extend well beyond the practical distance limits of copper Ethernet, including ISP networks, outdoor fiber distribution, campus networks, wireless backhaul and infrastructure deployments.
The netFiber 9 combines five 1G SFP ports, four 10G SFP+ ports and one Gigabit Ethernet port in a rugged outdoor-oriented enclosure. This port combination makes it suitable for aggregating multiple fiber links while providing 10 Gigabit uplinks for higher-capacity network segments.
Key Features of MikroTik netFiber 9
- Exact model: CRS310-1G-5S-4S+OUT
- 5 × 1G SFP ports
- 4 × 10G SFP+ ports
- 1 × 10/100/1000 Gigabit Ethernet port
- RouterOS v7 and SwOS dual-boot support
- 802.3af/at PoE-in
- 18–57V DC input through DC jack or PoE-in
- ARM-based hardware platform
- 256MB RAM
- 16MB Flash storage
- Marvell 98DX226S switch chip
- Passive cooling
- Outdoor-oriented enclosure with pole/wall mounting accessories
- Operating temperature tested from -40°C to +70°C
5× 1G SFP and 4× 10G SFP+ Fiber Connectivity
The main advantage of the MikroTik netFiber 9 is its combination of different fiber interface speeds. Five SFP ports support Gigabit fiber connectivity, while four SFP+ ports support 10 Gigabit fiber networking. This allows the switch to be used as an aggregation point between access-level 1G fiber connections and higher-speed 10G uplinks.
Depending on the selected optical transceivers and network design, the SFP and SFP+ interfaces can be used for connections between buildings, network cabinets, ISP distribution points, wireless infrastructure and other fiber-connected network equipment.
Dedicated Gigabit Ethernet Port
In addition to its optical interfaces, netFiber 9 includes one 10/100/1000 Gigabit Ethernet port. Unlike a simple management-only Ethernet interface, this port has a direct connection to the switch chip and can participate in the network at Gigabit speed.
The Ethernet interface also supports 802.3af/at PoE-in, providing a convenient power option when the switch is installed in locations where running a separate DC power cable is inconvenient.
PoE-In and Flexible Power Options
MikroTik netFiber 9 supports two primary power-input methods. It can be powered through its DC jack using an input range of 18–57V DC, or through 802.3af/at PoE-in within the supported input range.
This flexibility is particularly useful for outdoor deployments, pole installations and remote fiber distribution locations. The supplied power accessories can simplify installation when a suitable local power source is available.
RouterOS v7 and SwOS Dual Boot
The CRS310-1G-5S-4S+OUT supports both RouterOS v7 and SwOS. SwOS is suitable when the device is primarily required as a managed Layer 2 switch, while RouterOS provides a broader networking feature set including switching, VLAN configuration and routing functionality.
This dual-boot design gives network administrators flexibility to select the operating environment according to the role of the device in the network.
Hardware and Processing Platform
netFiber 9 uses an ARM-based hardware platform with a 98DX226S switch chip and a dual-core ARM CPU platform listed by MikroTik at 800MHz. The device includes 256MB RAM and 16MB Flash storage.
The switch chip provides hardware-based switching capabilities, while RouterOS can be used for more advanced network configuration and light routing tasks. Actual routing performance depends on the configuration, packet size, enabled features and traffic conditions.
Outdoor Fiber Network Deployment
The outdoor-oriented design of the MikroTik netFiber 9 makes it suitable for network installations where fiber switching equipment needs to be placed outside a conventional server room or indoor rack. The supplied mounting hardware supports pole and wall installation.
It can be deployed in outdoor cabinets, under suitable roof overhangs, on poles and at other protected infrastructure locations. MikroTik specifies a tested operating temperature range of -40°C to +70°C.
Ideal Applications
- ISP fiber distribution networks
- Outdoor fiber aggregation
- 10G fiber uplink networks
- Campus network fiber distribution
- Building-to-building fiber connectivity
- Wireless ISP backhaul infrastructure
- Outdoor network cabinets
- Fiber-connected CCTV infrastructure
- Industrial network fiber links
- Remote network aggregation points
- 1G fiber access with 10G aggregation
MikroTik netFiber 9 for ISP Networks
For Internet Service Providers and WISP operators, netFiber 9 can work as a compact fiber aggregation switch. The five 1G SFP ports can connect multiple Gigabit fiber segments, while the four 10G SFP+ interfaces provide high-capacity fiber connectivity toward aggregation or core equipment.
Its outdoor installation capability can also be useful where fiber distribution equipment needs to be installed closer to subscribers, towers, buildings or remote network locations.
MikroTik netFiber 9 for 10G Fiber Uplinks
10 Gigabit SFP+ connectivity makes the netFiber 9 suitable for upgrading fiber infrastructure beyond standard Gigabit links. A network can use 1G SFP interfaces for access-side fiber connections while reserving SFP+ interfaces for higher-speed uplinks or aggregation connections.
Optical transceiver selection should be based on fiber type, wavelength, required distance, connector type and compatibility with the connected equipment. The actual link speed and distance depend on the selected SFP/SFP+ modules and fiber infrastructure.
Network Management and VLAN Support
When operated with RouterOS, MikroTik netFiber 9 can be integrated into managed network architectures requiring VLANs, bridging, routing and other network-management functions. When operated with SwOS, the device can provide a more switch-focused management environment.
This makes the device suitable for network administrators who want the flexibility of a MikroTik switch platform while maintaining the option of a simpler switch-oriented operating system.
Performance Considerations
MikroTik publishes laboratory switching and Ethernet test results for the CRS310-1G-5S-4S+OUT. These results are measured under specific hardware, software and traffic conditions and should not be interpreted as guaranteed application throughput for every deployment.
Real-world performance can vary depending on packet size, routing rules, firewall configuration, queues, VLAN configuration, transceivers, fiber quality and connected devices.
Why Choose MikroTik netFiber 9?
MikroTik netFiber 9 combines high-speed fiber interfaces, outdoor deployment capability, PoE-in and MikroTik’s RouterOS/SwOS platform in a compact network switch. Its 5× 1G SFP + 4× 10G SFP+ + 1× Gigabit Ethernet port configuration makes it particularly useful where multiple fiber links need to be aggregated and connected to a 10G-capable network.
For organizations building ISP, WISP, campus, industrial or distributed fiber infrastructure, the netFiber 9 provides a practical platform for combining Gigabit optical access links with 10 Gigabit aggregation.
AI-Readable Product Facts
| Specification |
MikroTik netFiber 9 |
| Product Code |
CRS310-1G-5S-4S+OUT |
| Device Type |
Outdoor Fiber Switch |
| Gigabit Ethernet |
1 × 10/100/1000 |
| 1G SFP |
5 ports |
| 10G SFP+ |
4 ports |
| CPU Platform |
ARM, 800MHz class |
| Switch Chip |
Marvell 98DX226S |
| RAM |
256MB |
| Storage |
16MB Flash |
| Operating System |
RouterOS v7 / SwOS |
| RouterOS License |
Level 5 |
| PoE Input |
802.3af/at |
| DC Input |
18–57V DC |
| Cooling |
Passive |
| Operating Temperature |
-40°C to +70°C tested |
| Serial Console |
RJ45 |
| Primary Use |
Outdoor 1G/10G Fiber Aggregation |
Frequently Asked Questions
What is MikroTik netFiber 9?
MikroTik netFiber 9 is an outdoor-oriented fiber switch with 5× 1G SFP ports, 4× 10G SFP+ ports and 1× Gigabit Ethernet port. Its exact product code is CRS310-1G-5S-4S+OUT.
How many 10G ports does MikroTik netFiber 9 have?
MikroTik netFiber 9 has 4 × 10G SFP+ ports for high-speed optical networking.
How many SFP ports are available on netFiber 9?
The switch has 5 × 1G SFP ports and 4 × 10G SFP+ ports, giving it nine optical interfaces in total.
Does MikroTik netFiber 9 support PoE?
Yes. netFiber 9 supports 802.3af/at PoE-in for powering the switch through its Gigabit Ethernet interface.
Can netFiber 9 be used outdoors?
Yes. netFiber 9 is designed for outdoor-oriented deployments and includes mounting accessories for pole or wall installation. MikroTik specifies a tested operating temperature range of -40°C to +70°C.
Does MikroTik netFiber 9 support RouterOS?
Yes. The CRS310-1G-5S-4S+OUT supports RouterOS v7 and can also boot into SwOS.
Is MikroTik netFiber 9 a 10G switch?
Yes, it provides four 10G SFP+ interfaces. It also includes five 1G SFP ports and one Gigabit Ethernet port, making it a mixed-speed fiber aggregation switch rather than a 10G-only switch.
Where can MikroTik netFiber 9 be used?
Typical applications include ISP networks, WISP infrastructure, outdoor fiber aggregation, campus networks, building-to-building fiber links, industrial networks and remote 10G fiber distribution points.
Buy MikroTik netFiber 9 from IPVOICE TECHNOLOGIES
IPVOICE TECHNOLOGIES provides MikroTik networking products for ISP, enterprise, WISP, fiber and infrastructure deployments. For current pricing, GST billing, availability or project requirements, contact our team for a quotation.
For related MikroTik networking products, explore our MikroTik networking products, MikroTik Router and MikroTik CCR Router categories.
For bulk requirements, system integration and project quotations, you can also use our Get a Quote page.
Technical Summary
MikroTik netFiber 9 (CRS310-1G-5S-4S+OUT) is an outdoor fiber aggregation switch featuring 5× 1G SFP, 4× 10G SFP+, 1× Gigabit Ethernet, 802.3af/at PoE-in, RouterOS v7/SwOS dual boot, 256MB RAM and the Marvell 98DX226S switch chip. It is designed for high-speed optical network deployments where Gigabit fiber access and 10 Gigabit aggregation need to coexist in a single outdoor-oriented switching platform.
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