The MikroTik CRS305-1G-4S+IN is a compact and powerful Cloud Router Switch. It is a managed switch designed to provide high-speed, 10 Gigabit connectivity in a small form factor, making it ideal for home labs, small offices, or as a high-performance distribution switch. The "-IN" in the model name typically indicates a version for the Indian market.

Key Features and Specifications

• Ports: It has a total of five ports, consisting of:

  • Four 10 Gigabit SFP+ cages: These ports are the primary feature of the switch, providing high-speed fiber or DAC (Direct Attach Cable) connectivity. They can also accept standard 1.25 Gb SFP modules.

  • One Gigabit Ethernet (RJ45) port: This port is typically used for management and can also be used for regular traffic.

• Dual Boot: This is a key feature of many MikroTik CRS (Cloud Router Switch) devices. The CRS305-1G-4S+IN allows you to choose between two operating systems:

  • SwOS (SwitchOS): A simplified, web-based operating system focused solely on Layer 2 switching features. It's easy to use and provides excellent switching performance.

  • RouterOS: MikroTik's full-featured operating system. It provides advanced Layer 3 routing, firewall, and other routing capabilities, giving you more flexibility and control.

• Performance: The switch has a switching capacity of 82 Gbps and a non-blocking throughput of 41 Gbps, which ensures line-rate performance even with all 10G ports in use.

• Power: It offers multiple powering options for redundancy:

  • Two DC power jacks: The device can be powered by two separate DC power adapters for failover redundancy.

  • PoE-in: It can also be powered by Passive PoE or IEEE 802.3af/at (PoE+) on the Gigabit Ethernet port.

• Design: The CRS305-1G-4S+IN has a sleek, compact, and fanless metal case, which makes it a silent device suitable for noise-sensitive environments like offices or home labs.