MikroTik CRS112-8G-4S-IN Smart Switch

The MikroTik CRS112-8G-4S-IN Smart Switch is a compact yet highly capable smart switch designed for small businesses, home offices, and professional networking environments. Equipped with eight Gigabit Ethernet ports and four SFP cages, it delivers the flexibility to manage both copper and fiber connections with ease. This makes it an ideal choice for network administrators who need a reliable switch that balances performance, scalability, and affordability.

Key Features:

• 8 × Gigabit Ethernet Ports: Fast wired connections for multiple devices.

• 4 × SFP Ports: Flexible fiber uplinks for high-speed or long-distance links.

• Dual OS Management: Choose RouterOS for advanced routing and network control, or SwOS for simplified switch management.

• Hybrid Router/Switch: Capable of both Layer 2 switching and basic Layer 3 routing.

• Fanless Silent Operation: Quiet performance ideal for offices and noise-sensitive environments.

• Compact Metal Design: Durable build that fits on desktops or wall mounts.

• Passive PoE-IN Support: Flexible powering via Ethernet or DC input.

MikroTik CRS112-8G-4S-IN Smart Switch Specifications:

• CPU: QCA8511, 400 MHz, 1 core

• RAM: 128 MB; Flash Storage: 16 MB

• Switching Capacity: ~16 Gbps, Forwarding ~11.9 Mpps

• Operating System: RouterOS Level 5 / SwOS dual boot

• Power Input: 10–57 V DC, passive PoE-IN supported

• Power Consumption: ~10–13.5 W max

• Operating Temp Range: –40°C to +70°C

• Dimensions: ~200 × 143 × 44 mm

• License Level: RouterOS L5

Flexible Connectivity Options

One of the biggest advantages of the CRS112-8G-4S-IN is its wide range of connectivity features. The 8× 10/100/1000 Ethernet ports ensure high-speed connections for standard devices such as PCs, printers, or servers. At the same time, the 4× SFP slots allow for fiber uplinks, giving you the ability to extend your network over long distances. This versatility makes it perfect for offices, hotels, or campus setups that demand both speed and flexibility.

Despite its compact desktop form factor, the switch includes a 400MHz CPU and 128MB RAM, which provide stable operation under heavy workloads. It comes in a lightweight metal enclosure that is durable, space-saving, and easy to install. With fanless cooling, the CRS112-8G-4S-IN operates silently, making it suitable for noise-sensitive environments like offices or study rooms.

Smart Management Features

Unlike unmanaged switches, the CRS112-8G-4S-IN runs on MikroTik’s RouterOS software, giving you access to Layer 3 features. You can configure VLANs, set up routing, manage firewall rules, and monitor traffic through an intuitive interface. For simpler management, it can also run in SwitchOS mode, where the focus is on straightforward switching. This dual OS capability ensures that both beginners and experienced IT professionals can configure the switch according to their needs.

Benefits of MikroTik CRS112-8G-4S-IN Smart Switch

• 8× Gigabit Ethernet ports for fast LAN connections

• 4× SFP cages for fiber uplinks

• 400MHz CPU with 128MB RAM for stable performance

• Dual OS support: RouterOS and SwitchOS

• Silent, fanless design in a compact form factor

• Affordable, versatile, and easy to deploy

Ideal Use Cases

This MikroTik switch is suitable for a wide variety of scenarios. Small businesses can use it as a core switch for connecting workstations and servers. Internet service providers can deploy it at client sites where both Ethernet and fiber connections are required. Educational institutions and hotels can rely on its silent operation and flexible connectivity to support multiple users efficiently.