MikroTik CRS309-1G-8S+IN 10G SFP+ Desktop Cloud Router Switch

The MikroTik CRS309-1G-8S+IN is a compact, high-performance desktop switch designed for modern networking environments that demand fast, reliable, and quiet operation. Featuring eight 10G SFP+ ports, a 1G management port, and a passive cooling system in a sturdy metallic chassis, this device provides enterprise-level switching capacity in a small, silent form factor. Ideal for data centers, enterprise deployments, or professional lab setups, the CRS309-1G-8S+IN ensures high throughput, flexible management, and long-term reliability.

Product Features

High-Speed 10G Connectivity

Equipped with 8 SFP+ ports, each supporting speeds up to 10 Gbps, this switch delivers an impressive total non-blocking throughput of 81 Gbps and a switching capacity of 162 Gbps. Perfect for high-bandwidth applications like server interconnects, virtualization, or data transfer.

Dual Boot Operating Systems

The CRS309 offers a choice between MikroTik’s powerful RouterOS for advanced Layer 3 features or SwOS for simplified Layer 2 switch management. Users can switch operating systems easily through RouterBOOT, RouterOS, or SwOS interfaces.

Silent Fanless Cooling

With passive heat dissipation and a high-quality metal housing that also functions as a heatsink, this switch operates completely silently—ideal for use in sound-sensitive environments like studios or offices.

Powerful Hardware Performance

Driven by a dual-core 800 MHz CPU and 512 MB of RAM, the CRS309 ensures consistent and responsive operation, even under demanding network loads.

Flexible Power and Management

Supports PoE input (802.3af/at), traditional DC jack power, and grounding for safety. Includes a management Ethernet port and RS232 serial port for versatile administrative access and setup options.

Rackmount Compatibility

The package includes rackmount ears, allowing for easy integration into existing rack environments.

Product Specifications

• Product code: CRS309-1G-8S+IN
• Architecture: ARM 32-bit
• CPU: 98DX8208 dual-core at 800 MHz
• RAM: 512 MB
• Storage: 16 MB flash
• Operating system: RouterOS Level 5 license / SwOS (dual boot)
• Dimensions: 228 mm x 140 mm x 44 mm
• Weight: 1.23 kg (2.71 lbs)
• Cooling: Passive (fanless)
• Enclosure: Metal, compact desktop form factor
• MTBF: Approximately 200,000 hours at 25°C
• Operating temperature: –40°C to +70°C
• Certification: CE, EAC, RoHS
• Ingress protection: IP20

Networking Interfaces

• SFP+ ports: 8 × 10 Gbps
• Ethernet ports: 1 × 1 Gbps (for management)
• Serial port: RS232 (RJ45)

Power and Redundancy

• Power input:
  • PoE-in (802.3af/at)
  • DC jack input voltage: 12–57 V
• Max power consumption: 23 W
• Power redundancy supported

Key Applications

• Data Centers: High-speed server-to-server communication with SFP+ fiber links
• Enterprise Networks: Delivers stable performance for video conferencing, large file transfers, and virtualization
• Professional Labs: Perfect for fiber network simulations and testing setups
• Offices & Studios: Silent, fanless operation fits noise-sensitive environments

Key Advantages

• High-density 10G SFP+ port layout in a small form
• Completely silent, no-moving-parts design
• Supports flexible management via RouterOS or SwOS
• PoE and DC input power options for redundancy
• Easy integration into rack environments using included mounting ears