The CRS305 is a small but powerful switch with four SFP+ ports capable of up to 10 Gbit per port. The gadget contains two DC connectors for power redundancy and a 1 Gbit copper ethernet port for management access. The device has a sleek and tiny metallic case with no fans, allowing for silent operation.
The device offers a "Dual boot" capability that allows you to select between RouterOS and SwOS. SwOS is a streamlined operating system that solely includes switch-specific capabilities. Use RouterOS if you want to use routing and other Layer 3 technologies in your CRS. You can choose an operating system from RouterOS, SwOS, or the RouterBOOT loader settings. The entire feature set is available at a competitive price, delivering the best price/performance ratio on the market.
High-speed fiber connectivity for uplinks and bandwidth-heavy links.
For management or regular network traffic.
Switch between RouterOS and SwOS for routing or simple switching.
Multiple power inputs with quiet, silent operation.
The MikroTik CRS305-1G-4S+IN (product code CRS305-1G-4S+IN) is a compact high-performance switch built on an ARM 32-bit architecture with a single-core 800-MHz CPU (98DX3236), designed for demanding network environments. It features 512-MB RAM and 16-MB FLASH storage, running RouterOS or SwitchOS with a Level 5 license for flexible network management. Measuring 141 × 115 × 28-mm, it operates reliably in temperatures from -40°C to 70°C. The switch provides 4 SFP+ ports for 10-Gbps fiber connections and 1 Gigabit Ethernet port for management or traffic. It supports PoE-IN (802.3af/at) and DC jack inputs (12–57-V) with three power options, consumes up to 18-W (10-W without attachments), and includes a CPU temperature monitor for stable, efficient operation.