Mikrotik CRS305-1G-4S+IN Switch

(1 review) Write a Review
  • CRS305-1G-4S+IN
  • CRS305-1G-4S+IN
  • CRS305-1G-4S+IN


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.


Product code CRS305-1G-4S+IN
Architecture ARM 32bit
CPU 98DX3236
CPU core count 1
CPU nominal frequency 800 MHz
Dimensions 141 x 115 x 28 mm
RouterOS license 5
Operating System RouterOS / SwitchOS
Size of RAM 512 MB
Storage size 16 MB
Storage type FLASH
Tested ambient temperature -40°C to 70°C
MTBF Approximately 200'000 hours at 25C
Suggested price $149.00


PoE in 802.3af/at
PoE in input Voltage 12-57 V
Number of DC inputs 3 (DC jack, PoE-IN)
DC jack input Voltage 12-57 V
Max power consumption 18 W
Max power consumption without attachments 10 W
FAN count Passive


10/100/1000 Ethernet ports 1


SFP+ ports 4


CPU temperature monitor Yes

Certification & Approvals

Certification CE, EAC, ROHS
View AllClose

1 Review

  • 5
    Mikrotik CRS305-1G-4S+IN

    Posted by eric on Mar 18th 2021

    As for the mikrotik switch, it's great, but you can find plenty of info on that all over the net. The real story here is Multilink. I was not familiar with multilink until I went to purchase this switch. Amazon and Newegg were out of stock and would have shipped it from China (est. up to 32 days) so I googled crs305-1g-4s-in and found it in stock at Multilink at a better price then got another five bucks off with a coupon and received it 3 days later. It is refreshing to see that there are still vendors in the US that provide products from their own stock and not just have them drop-shipped from overseas. I would highly recommend doing business with Multilink as they have made this transaction a satisfying experience.

View AllClose