Mikrotik CRS309-1G-8S+IN Managed Gigabit Ethernet Switch with PoE, RJ45, White, Metal Case

Q: Will the 10g sfp+ ports support 1g/gige sfp's (i.e. are the ports 1g and/or 10g capable)?

If you try to use a 1Gbit SFP transceiver that isn’t from MikroTik you will likely at first have problems and it might not work. If this happens you have to go into RouterOS and turn off auto negotiate for that port. You want to manually select the speed as well. Then I’d recommend that you use masking tape or a label maker to mark the physical router so that you or a future user knows that one of the ports has auto negotiate turned off. You’ll actually need to do this with the MikroTik S+RJ10 as well as it has problems sticking too the highest speed your cable can handle (it’s a multi speed 1G/2.5G/5G/10G transceiver) I don’t know if SwitchOS has the same problems.

Q: Do these switches have the ability for mlag? i.e. i want to have two of these as core switches for redundancy.

I don't believe so. You would need to check with MikroTik to see if that feature is available in the Router OS.

Q: Will cisco sfp-10g-sr and sfp-10g-lrm sfp's work in this?

Cisco compatibles have worked well for me. This is not nearly as finicky as a Cisco switch.

Product ID: 313962432

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Details

Brand
Mikrotik
Number of ports
9
Included components
Power Adapter
Colour
White
Compatible devices
Desktop

⚡8x 10G SFP+ ports for ultra-fast connectivity

🔌PoE support for streamlined power & data

🛡️Robust metal case for durable, cool operation

Frequently Bought Together

MikroTik CRS309-1G-8S+in

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Description

⚡ Elevate your network game with speed and style!

BLAZING 10 G SFP SPEED - Experience lightning-fast data transfer with 8 high-performance 10G SFP+ ports, perfect for future-proofing your network.
COMPACT DURABLE DESIGN - Sleek white metal chassis combines professional aesthetics with rugged durability to withstand demanding environments.
PLUG AND PLAY SIMPLICITY - RJ45 Gigabit Ethernet port ensures easy integration into existing setups, making advanced networking accessible.
SEAMLESS PO E INTEGRATION - Power your devices effortlessly with built-in Power over Ethernet support, reducing cable clutter and installation hassle.
ENERGY EFFICIENT OPERATION - Consumes just 19 watts, delivering powerful performance without inflating your energy bills.

The Mikrotik CRS309-1G-8S+IN is a compact, metal-cased managed switch featuring 8 ultra-fast 10G SFP+ ports and 1 Gigabit RJ45 port with PoE support. Designed for professionals seeking reliable, high-speed connectivity in a sleek, energy-efficient package.

Specifications

Product dimensions	14.1L x 11.5W x 2.8H centimeters
Item weight	499 g
Voltage	12 Volts
Case material type	Metal
Upper temperature rating	4E+1 Degrees Celsius
Interface type	RJ45
Data transfer rate	1000 Megabits Per Second
Manufacturer	MIKROTIK
Item model number	CRS309-1G-8S+IN
Color	White
Wattage	19 watts
Are Batteries Included	No
Item Weight	499 g

Have a Question? See What Others Asked

Will the 10g sfp+ ports support 1g/gige sfp's (i.e. are the ports 1g and/or 10g capable)?

Do these switches have the ability for mlag? i.e. i want to have two of these as core switches for redundancy.

Has anyone tried to put two ports in lacp 802.3ad in active mode?

Will cisco sfp-10g-sr and sfp-10g-lrm sfp's work in this?

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