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  • Product Code: RBCRS105-5S-FB
  • Download Datasheet: click to download pdf
  • Brand: MikroTik


MikroTik FiberBox (

The Fiberbox is an outdoor router with five SFP ports, ideal for locations where distance is restricting the use of regular ethernet cables. The device is weatherproof and comes with a hose clamp and zip ties, ready to be installed on high masts and towers.

The package also includes the RJ45 SFP (S-RJ01) copper module already preinstalled in the first port, so you can use ethernet in one of the ports already out of the box. If not needed, remove it to have access to all five SFP ports for using with 1.25 Gbit fiber modules.


Switching results:

ModeConfiguration64 byte512 byte1518 byte
SwitchingNon blocking Layer 2 throughput7,440.53,809.51,174.84,812.0406.44,935.0
SwitchingNon blocking Layer 2 capacity7,440.57,619.01,174.89,624.1406.49,870.0
SwitchingNon blocking Layer 1 throughput7,440.55,000.01,174.85,000.0406.45,000.0
SwitchingNon blocking Layer 1 capacity7,440.510,000.01,174.810,000.0406.410,000.0

Ethernet test results:

CRS105-5S-FBQCA8511 1G all port test
ModeConfiguration1518 byte512 byte64 byte
Bridging25 bridge filter rules26.1317.028.6117.129.615.2
Routing25 simple queues14.5176.116.165.916.88.6
Routing25 ip filter rules7.894.


RouterBoard Specs
RouterBoard CPU QCA8511, 400 MHz
Memory 128 MB
Wired Interfaces 5x 1.25G Ethernet SFP cages; 1x RJ45 SFP module included
PoE NO, DC Jack only: 9-30 V
RouterBoard License Level 5
Operating System RouterOS

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