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MikroTik CRS305-1G-4S+IN 1xGigabit 4xSFP+ Cloud Router Switch

  • SKU: CRS305-1G-4S+IN
  • Manufacturer: MikroTik
  • Data Sheet: Download
  • Availability: Call for Availability This item can sometimes be sourced and shipped direct from other locations when out of stock. Email me when this product is in stock!

MikroTik RouterBOARD CRS305-1G-4S+IN

Mikrotik 1xGigabit 4xSFP+ Cloud Router Switch

The CRS305 is a compact yet very powerful switch, featuring four SFP+ ports, for up to 10 Gbit per port. The device has a 1 Gbit copper ethernet port for management access and two DC jacks for power redundancy. The device is a very sleek and compact metallic case without any fans, for silent operation.

The device has a “Dual boot” feature that allows you to choose between two operating systems - RouterOS or SwOS. If you prefer to have a simplified operating system with only switch specific features, use SwOS. If you would like the ability to use routing and other Layer 3 features in your CRS, use RouterOS. You can select the desired operating system from RouterOS, from SwOS or from the RouterBOOT loader settings. All the feature set comes with a disruptive price, providing the best price/performance on the market.


  • 4 SFP+ ports
  • 1 Gigabit Ethernet ports
  • Non-Blocking throughput: 41 Gbps
  • Switching capacity: 82 Gbps
  • Forwarding rate: 61 Mpps
  • 2 DC jack for redundancy
  • Maximum power consumption: 12 W (with attachments 18 W)
  • Supports PoE+ IEEE 802.3at/af and passive PoE 12-57 V
  • Metal enclosure
  • Fanless

Specifications CRS305-1G-4S+IN

CPU 98DX3236A1 800 MHz
RAM 512 MB
Storage type Flash
Storage size 16 MB
Switch chip model 98DX3236A1
10/100/1000 Ethernet ports 1
SFP+ cages 4
Operating system SwOS / RouterOS (Dual boot)
PoE in Yes
Supported input voltage 12 - 57 V (DC jack and PoE in)
Number of DC jacks 2
Dimensions 141 x 115 x 28 mm
Operating temperature -40°C .. +70°C tested
Max power consumption 12 W
License level 5