MikroTik CRS309-1G-8S+IN - Cloud Router Switch Dual boot SwOS/RouterOS
Description
MikroTik CRS309-1G-8S+IN - Cloud Router Switch Dual boot SwOS/RouterOS, Switching capacity 162 Gbps, 8 SFP+, 1 GB port, Dual boot, POE in, DC jacks
CRS309-1G-8S+IN
Desktop switch with one Gigabit Ethernet port and eight SFP+ 10Gbps ports
The CRS309-1G-8S+ is a very compact, yet powerful networking switch. It has eight SFP+ slots, supporting up to 10 Gbit module in each, which results in a total switching capacity of 162 Gbps and total non-blocking throughput of 81 Gbps.
The device also has dual-core 800 MHz CPU, 512 MB RAM, a management Ethernet port with PoE power input, RS232 serial port, a grounding terminal and is capable of dual boot (choose which operating system you prefer, RouterOS, or SwOS).  
SKU#: MT-RBCRS309-1G-8S+IN
Warranty: 1 Year
Manufacturer SKU#: CRS309-1G-8S+IN
Barcode: 4752224002143
Categories:
Networking, Switches - Managed, Layer 3
Brand: MikroTik
Features
Switching capacity 162 Gbps, 8 SFP+, 1 GB port, Dual boot, POE in, DC jacks
Specifications
| Details | |
|---|---|
| Product code | CRS309-1G-8S+IN | 
| Architecture | ARM 32bit | 
| CPU | 98DX8208 | 
| CPU core count | 2 | 
| CPU nominal frequency | 800 MHz | 
| Switch chip model | 98DX8208 | 
| Dimensions | 272 x 191 x 44 mm | 
| RouterOS license | 5 | 
| Operating System | RouterOS / SwitchOS | 
| Size of RAM | 512 MB | 
| Storage size | 16 MB | 
| Storage type | FLASH | 
| MTBF | Approximately 200'000 hours at 25C | 
| Tested ambient temperature | -40°C to 70°C | 
| Suggested price | N/A | 
Powering
| Details | |
|---|---|
| Number of DC inputs | 2 (DC jack, PoE-IN) | 
| DC jack input Voltage | 12-57 V | 
| Max power consumption | 23 W | 
| Max power consumption without attachments | 17 W | 
| Cooling type | Passive | 
| PoE in | 802.3af/at | 
| PoE in input Voltage | 18-57 V | 
Ethernet
| Details | |
|---|---|
| 10/100/1000 Ethernet ports | 1 | 
Fiber
| Details | |
|---|---|
| SFP+ ports | 8 | 
Peripherals
| Details | |
|---|---|
| Serial console port | RS232 | 
Other
| Details | |
|---|---|
| CPU temperature monitor | Yes | 
| Beeper | Yes | 
Certification & Approvals
| Details | |
|---|---|
| Certification | CE, EAC, ROHS | 
| IP | IP20 | 
Included parts
Inventory Last Updated: Oct 31, 2025
 
              
             
       
      




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