MikroTik CRS310-1G-5S-4S+IN 10G SFP+ Managed Network Switch 5-Port SFP

The MikroTik CRS310-1G-5S-4S+IN is a compact, rackmount-ready managed fiber switch built for small offices, enterprise aggregation points, and ISP access or backhaul deployments that demand reliable high-speed connectivity. Its port mix—five 1G SFP slots, four 10G SFP+ slots, and one 10/100/1000 RJ45 port—gives network architects the flexibility to blend gigabit optical uplinks with 10-gigabit backbone connections in a single 1U-class chassis. The switch is driven by a single-core 800 MHz ARM 32-bit CPU paired with the 98DX226S switching chip and 256 MB of RAM, enabling hardware-offloaded VLAN filtering and Layer-3 routing without burdening the processor. Administrators can operate the device under MikroTik RouterOS v7 (License Level 5) or SwitchOS, providing a full suite of traffic management, VLAN segmentation, and advanced switching controls. Power can be delivered via a DC jack or through the RJ45 port's 802.3af/at PoE-in input (18–57 V), offering installation flexibility where fixed power outlets are scarce. With a tested ambient operating range of -40 °C to 70 °C and a rated MTBF of approximately 200,000 hours at 25 °C, the CRS310-1G-5S-4S+IN is engineered for long-term, dependable service in demanding network environments.

Key features & benefits

• Four 10G SFP+ Ports — Deliver high-throughput fiber connectivity for backbone links, ISP backhaul, and inter-building interconnects where 10-gigabit bandwidth is essential.
• Five 1G SFP Ports — Provide gigabit optical networking capacity for connecting access-layer switches, servers, or storage devices over fiber runs.
• 1× Gigabit Ethernet RJ45 with PoE-In — The copper management or uplink port supports 802.3af/at PoE-in at 18–57 V, enabling flexible placement in locations without direct AC power access.
• Hardware-Offloaded VLAN Filtering and Layer-3 Routing — The 98DX226S switching chip handles VLAN and routing tasks in hardware, preserving CPU headroom for management functions and sustaining wire-rate performance.
• Dual OS Support: RouterOS v7 and SwitchOS — Administrators can choose between the full-featured RouterOS environment (License Level 5) for complex routing and policy configurations or the streamlined SwitchOS interface optimized for pure switching roles.
• ARM 32-Bit CPU at 800 MHz with 256 MB RAM — The single-core processor and onboard memory provide sufficient resources for advanced network management tasks, traffic analysis, and scripting under RouterOS.
• Dual DC Power Inputs — Two independent power inputs—DC jack and PoE-in—allow redundant or alternative powering arrangements to improve uptime in critical deployments.
• Wide Tested Ambient Temperature Range — Validated operation from -40 °C to 70 °C makes the switch suitable for network closets, industrial spaces, and outdoor enclosures where thermal conditions vary significantly.
• CPU, PCB, and Voltage Monitoring — Onboard monitoring of CPU temperature, PCB temperature, and input voltage gives administrators real-time visibility into hardware health directly from the management interface.
• Serial Console Port (RJ45) — Provides out-of-band management access for initial configuration, recovery, or remote console server integration without relying on the network.