MikroTik CRS305-1G-4S+IN 10G SFP+ Desktop Cloud Router Switch

The MikroTik CRS305-1G-4S+IN is a compact, high-performance desktop switch that delivers exceptional 10 Gigabit Ethernet capabilities in a fanless, silent design. Featuring four SFP+ ports and one 1G RJ45 management port, it provides a powerful solution for high-speed networking in both enterprise and professional environments. With dual boot support for RouterOS and SwOS, it offers the flexibility to serve either as a simple Layer 2 switch or as an advanced Layer 3 device with routing and management capabilities. Designed in a durable metal chassis with passive cooling and dual power inputs, this switch is engineered for efficiency, reliability, and quiet operation.

Product Features

High-speed 10G fiber connectivity

Equipped with 4 SFP+ ports supporting speeds up to 10 Gbps per port, the CRS305-1G-4S+IN is ideal for connecting to high-performance storage, servers, or uplink distribution switches in enterprise or home lab setups.

Dual operating system support

The switch features a dual boot option, allowing users to choose between MikroTik’s RouterOS for Layer 3 routing and firewall features, or SwOS for simpler Layer 2 switch management. This makes it adaptable for both advanced users and straightforward deployments.

Passive cooling for silent operation

Built with a compact and robust metal enclosure, this unit uses passive heat dissipation, making it completely silent—ideal for quiet office or studio environments.

Redundant power options

Features two DC jacks and PoE-in support (802.3af/at), ensuring uninterrupted operation through multiple power sources. This redundancy enhances reliability in professional network infrastructures.

Compact and robust design

At just 141 x 115 x 28 mm, the switch is space-efficient and highly portable. Its metallic chassis offers durability and enhanced electromagnetic shielding.

Integrated hardware monitoring

Includes a CPU temperature monitor for improved system awareness and operational safety under demanding conditions.

Product Specifications

• Product code: CRS305-1G-4S+IN
• Architecture: ARM 32-bit
• CPU model: 98DX3236
• CPU core count: 1
• CPU frequency: 800 MHz
• RAM: 512 MB
• Storage: 16 MB flash
• Operating system: RouterOS (Level 5 license) / SwitchOS (dual boot)
• Dimensions: 141 mm x 115 mm x 28 mm
• Weight: Lightweight, compact desktop unit
• MTBF: Approximately 200,000 hours at 25°C
• Operating temperature: –40°C to +70°C
• Cooling: Passive, fanless design
• Certification: CE, EAC, RoHS
• Ingress protection: IP20

Networking Interfaces

• Ethernet ports: 1 × 10/100/1000 Mbps (RJ45)
• Fiber ports: 4 × 10G SFP+ slots

Power and Redundancy

• DC inputs: 3 (2 × DC jack, 1 × PoE-in)
• Supported DC input voltage: 12–57 V
• Power over Ethernet (PoE-in): 802.3af/at compatible
• Max power consumption: 18 W (10 W without attachments)

Key Advantages

• Compact size with enterprise-grade performance
• 4 × 10G SFP+ ports for high-speed fiber connections
• Dual boot for flexible OS selection
• Completely silent, fanless operation
• Power redundancy via dual DC jacks and PoE-in
• Ideal for professional labs, small business networks, and performance-focused home networks