Product Description
CRS305-1G-4S+IN – Compact 4x SFP+ 10G Switch with Gigabit Management
The MikroTik CRS305-1G-4S+IN is a compact yet powerful five-port desktop switch with four 10 Gigabit SFP+ ports and one Gigabit Ethernet port for management or regular traffic forwarding. With dual DC jacks for power redundancy and a sleek metallic case with no fans, this fanless 10G switch is ideal for noise-sensitive environments such as offices, homelabs or studios. Dual-boot RouterOS or SwitchOS provides you the flexibility to choose between full Layer-3 routing or simplified switch management.
Top Features
- 4x SFP+ Cages: Up to 10 Gbit per port for fiber or DAC connections.
- 1x Gigabit Ethernet: Management port that also supports PoE-in (passive).
- Fanless Metallic Case: Silent operation, perfect for quiet environments.
- Dual DC Power Inputs: Two DC jacks for redundancy.
- Dual Boot RouterOS / SwitchOS: Full router or simple switch features.
| Category | Specification |
|---|---|
| Switching Performance | |
| Product Code | CRS305-1G-4S+IN |
| Switching Capacity | 82 Gbps |
| Non-blocking Throughput | 41 Gbps |
| Processing and Memory | |
| CPU | 98DX8208 (ARM) |
| RAM | 512 MB |
| Storage | 16 MB Flash |
| Operating System | RouterOS v7 / SwitchOS (dual boot), Level 5 |
| Ports and Connectivity | |
| Gigabit Ethernet Ports | 1 (with PoE-in) |
| SFP+ Ports | 4 x 10G |
| PoE In | Yes (Gigabit port) |
| Powering and Dimensions | |
| Dimensions | 144 x 88 x 28 mm |
| Cooling | Passive (fanless) |
| Max Power Consumption | 18 W (with attachments) |
| Tested Temperature | -40°C to 70°C |
Backed by MikroTik's commitment to quality, this device ships with RouterOS pre-installed and licensed. Free software updates are included for the life of the product or a minimum of 5 years from date of purchase. The device is fully compliant with applicable safety certifications. Refer to the official MikroTik documentation for warranty terms and configuration guidance.













