MikroTik CRS112-8G-4S-IN Switch

In modern networking environments, performance and reliability don’t always come from bulky enterprise hardware. The MikroTik CRS112-8G-4S-IN Switch proves that high-end capability can exist in a compact and affordable form. Designed for small to medium-sized networks, this smart managed switch combines Gigabit Ethernet and SFP fiber interfaces, giving users the flexibility to build hybrid networks without overspending. Whether it’s used in an office, a small data center, or even a home lab, this MikroTik switch delivers the balance of performance, management, and cost-efficiency that MikroTik is known for.

Comprehensive Overview of MikroTik CRS112-8G-4S-IN Switch

The MikroTik CRS112-8G-4S-IN (part number CRS112-8G-4S-IN) belongs to MikroTik’s Cloud Router Switch family, known for blending Layer 3 routing intelligence with robust Layer 2 switching performance. Inside its compact metal desktop chassis, you’ll find 8 Gigabit Ethernet ports and 4 SFP cages for fiber uplinks, allowing easy integration into both copper and fiber networks. It’s powered by RouterOS Level 5, offering enterprise-grade features such as VLANs, STP, QoS, firewall, and routing—all configurable through an intuitive web interface or CLI.

Despite its size, the CRS112-8G-4S-IN is built for real work. It’s not a basic unmanaged switch; instead, it’s a fully managed hybrid switch that supports hardware-accelerated switching and software-based Layer 3 routing. With a 400 MHz CPU, 128 MB of RAM, and support for a wide range of Layer 2/3 protocols, it can handle complex network configurations without a hitch. The passive cooling design ensures silent operation—ideal for environments where noise matters, such as offices or studio setups.

Real-World Applications

The MikroTik CRS112-8G-4S-IN Switch fits perfectly in multiple use cases. It can serve as a core switch for small offices or as an edge switch in larger deployments. Thanks to its SFP ports, it’s ideal for linking remote network segments via fiber connections. It’s also a strong choice for home lab enthusiasts who want enterprise-level control in a compact package.

In retail or small hospitality networks, this switch can handle POS systems, IP cameras, access points, and VoIP phones simultaneously. With VLAN and QoS capabilities, it can prioritize critical traffic such as voice or video. Network administrators can monitor performance using MikroTik WinBox, WebFig, or SNMP, making this switch perfect for professionals who want visibility and control without the complexity of larger enterprise devices.

Ports and Connectivity

Connectivity is where the MikroTik CRS112-8G-4S-IN shines. It features:

• 8 Gigabit Ethernet ports (RJ45) for standard LAN connections
• 4 SFP cages for 1 Gbps fiber uplinks
• Console port (RJ45) for configuration and management
• DC input (10–57V) and a power jack, supporting flexible power setups

This combination of copper and fiber allows hybrid networking environments—ideal for offices that need both short-distance Gigabit connections and long-distance fiber uplinks. The switch supports both auto-MDI/X and auto-negotiation, making deployment plug-and-play.

Each SFP cage supports modules like 1.25G SX, LX, or BiDi transceivers, giving users the flexibility to connect to various fiber backbones or long-distance links. The inclusion of 4 SFP ports in such a compact body makes it a rare find in its price range.

Key Features of MikroTik CRS112-8G-4S-IN Switch

1. 8 Gigabit Ethernet + 4 SFP ports for hybrid connectivity
2. RouterOS Level 5 with full Layer 3 routing features
3. Silent, fanless design for office and studio environments
4. Compact metal desktop case suitable for desktop or wall mounting
5. Powerful management tools via WinBox, WebFig, or CLI
6. Support for VLANs, STP, MSTP, and RSTP
7. Advanced QoS for traffic prioritization
8. SNMP and monitoring tools for network visibility

VLAN Configuration Flexibility

One of the biggest advantages of this switch is its VLAN flexibility. Administrators can define VLANs across both Ethernet and SFP interfaces, separating network traffic for improved security and efficiency. For example, you can isolate guest Wi-Fi users from internal office traffic or separate IP camera networks from general users.

With RouterOS, VLAN tagging (802.1Q) and untagged traffic configuration can be done per port. The CRS112 also supports inter-VLAN routing, allowing seamless communication between VLANs when required.

Silent Cooling and Energy Efficiency

Unlike many enterprise switches, the CRS112-8G-4S-IN operates without active fans. Its passive cooling system keeps it completely silent, making it suitable for noise-sensitive environments such as offices, classrooms, or recording studios.

Power consumption remains minimal, typically around 10–13 watts, even under full load. This efficiency not only reduces electricity costs but also ensures the device runs cool and extends its lifespan.

Comparison with Similar MikroTik Switches

The table clearly shows that MikroTik CRS112-8G-4S-IN is the best balance between affordability, port diversity, and performance for small business networks. If you don’t need 10G SFP+ ports or PoE, it’s the ideal choice.

Technical Specifications

Frequently Asked Questions (FAQ)

1. What is the main difference between MikroTik CRS112-8G-4S-IN and CRS210-8G-2S+IN?
The CRS210 has two 10G SFP+ ports, while the CRS112 has four 1G SFP ports. For environments that don’t need 10G, the CRS112 is more cost-efficient.

2. Can I use the CRS112-8G-4S-IN as a router?
Yes, it runs RouterOS Level 5, allowing full Layer 3 routing. However, its 400 MHz CPU limits throughput for heavy routing tasks.

3. Does this switch support PoE output?
No, it doesn’t provide PoE out. It can only be powered via DC input or power adapter.

4. Is the CRS112-8G-4S-IN fanless?
Yes, it’s completely fanless and silent, suitable for quiet workspaces.

5. Can I connect this switch directly to a MikroTik router?
Absolutely. It integrates seamlessly with MikroTik routers or other network brands.

6. What SFP modules are compatible with it?
It supports standard 1.25G SFP modules like SX, LX, or BiDi. Non-MikroTik transceivers are often compatible as well.

7. Is it suitable for fiber-to-office connections?
Yes, its four SFP cages make it ideal for hybrid copper/fiber environments.

8. Can it be managed remotely?
Yes, via WinBox, WebFig, or SSH with secure authentication.

9. What’s the maximum power draw?
Approximately 13 watts at full load.

10. Is it a good choice for home labs?
Definitely. The CRS112-8G-4S-IN provides enterprise features in a small, quiet, and affordable package perfect for lab setups.

Summary

The MikroTik CRS112-8G-4S-IN Switch is an outstanding choice for small businesses, offices, or enthusiasts who need a reliable managed switch with both Ethernet and fiber connectivity. Its RouterOS integration, silent design, and flexible management options make it a powerful tool for professional and educational environments alike.

At ITMan.ae, this model is available for immediate purchase, giving UAE customers access to genuine MikroTik equipment backed by local warranty and support. Whether you’re building a new office network or upgrading an existing setup, this switch provides everything you need for dependable performance and scalability.