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Compact metal desktop switch with eight SFP+ ports and one Ethernet port

Mikrotik

Mikrotik CRS309-1G-8S+IN 9-port network switch

SKU CH-B03B-31RQD

A compact 9-port switch with eight 10G SFP+ ports and one Gigabit Ethernet port, offering 162Gbps switching capacity and silent passive cooling

  • Compact desktop switch fits tight spaces with 141mm x 115mm x 28mm metal enclosure
  • Silent passive cooling uses the metal case as a heatsink with no fan noise
  • Eight SFP+ ports deliver 10Gbps each for 162Gbps total switching capacity
  • Dual-core 800MHz CPU and 512MB RAM run RouterOS or SwOS via dual boot
  • Single Gigabit Ethernet management port accepts 12V passive PoE or 802.3af power

Compact 10G aggregation switch

The Mikrotik CRS309-1G-8S+IN is a passively cooled Cloud Router Switch with eight SFP+ ports supporting 10Gbit modules and one Gigabit Ethernet management port. It delivers 162Gbps total switching capacity and 81Gbps non-blocking throughput in a fanless metal enclosure.

Suits fibre-heavy links, not copper-only desks

This unit fits builders who need dense 10G fibre uplinks in a silent desktop or rack form factor. Buyers who want multiple copper ports for direct device connections or PoE output to power cameras and access points should look at a different model.

Eight SFP+ slots define the build

The eight SFP+ interfaces set the port budget; every 10G link consumes one slot, so the switch only works when the surrounding network uses fibre or compatible DAC cables.

Highlights

  • Compact desktop switch fits tight spaces with 141mm x 115mm x 28mm metal enclosure
  • Silent passive cooling uses the metal case as a heatsink with no fan noise
  • Eight SFP+ ports deliver 10Gbps each for 162Gbps total switching capacity
  • Dual-core 800MHz CPU and 512MB RAM run RouterOS or SwOS via dual boot
  • Single Gigabit Ethernet management port accepts 12V passive PoE or 802.3af power

Specifications

No published specifications for this item yet.

Questions about this item

How much power does the CRS309-1G-8S+IN draw when all eight SFP+ ports run at 10Gbps continuously?

The switch is powered by 12 Volts passive PoE or 802.3 af and uses passive cooling; no fan noise or dust buildup occurs during all-day operation.

Which transceivers and cables must I supply to use the eight 10G SFP+ ports?

You must provide compatible SFP+ modules and matching fibre or direct-attach cables; the switch has no built-in optics.

Will the single 10/100/1000 Ethernet management port negotiate down to 100Mbps if I connect it to an older router?

Yes, the management port supports 10, 100 and 1000Mbps speeds and will auto-negotiate with legacy equipment.

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