MikroTik CRS309-1G-8S+IN 8-Port 10G SFP+ Managed Switch | 1× Gigabit, RouterOS/SwOS, Fanless

MikroTik CRS309-1G-8S+IN 8-Port 10G SFP+ Managed Switch

The MikroTik CRS309-1G-8S+IN is a compact high-speed managed switch designed for 10 Gigabit fiber and direct-attach network deployments. It provides 8 × 10G SFP+ ports along with 1 × Gigabit Ethernet port for management and network connectivity.

Powered by the Marvell Prestera switch chipset and supported by both MikroTik RouterOS and SwOS, the CRS309-1G-8S+IN can be configured as a dedicated high-performance Layer 2 switch or as a more advanced RouterOS-based networking platform.

8× 10G SFP+ Ports

The most important feature of the CRS309-1G-8S+IN is its eight 10G SFP+ interfaces. These ports can be used with compatible SFP/SFP+ transceivers, fiber modules, DAC cables and active optical cables.

The eight SFP+ interfaces make the CRS309 suitable for connecting high-speed servers, storage systems, network routers, aggregation switches and other 10G-capable equipment.

• 8 × 10G SFP+ ports
• 1 × 10/100/1000 Gigabit Ethernet port
• Compatible with supported SFP/SFP+ modules
• Suitable for 10G fiber uplinks
• Suitable for short-distance DAC/AOC connections
• Designed for high-density 10G connectivity

10G Network Aggregation

The CRS309-1G-8S+IN is particularly useful where several 10G devices need to be interconnected through a compact switch. Its eight SFP+ ports allow multiple high-speed links to be aggregated within a single device.

A typical deployment can connect 10G servers, storage systems and routers to the CRS309 while using the Gigabit Ethernet interface for management or an additional network connection.

RouterOS and SwOS Dual Boot

The CRS309-1G-8S+IN supports both MikroTik RouterOS and SwOS. This gives network administrators flexibility in selecting the operating environment according to the deployment.

SwOS is focused on Layer 2 switching and provides a straightforward web-based management interface. RouterOS provides a broader set of networking functions and allows the CRS309 platform to be used for more advanced configurations.

SwOS Layer 2 Switching Features

When operated with SwOS, the CRS309 can provide a range of managed-switch functions including VLAN configuration, port isolation, forwarding control, traffic monitoring and other Layer 2 features.

• VLAN configuration
• Port isolation
• MAC-based filtering
• Port mirroring
• Bandwidth limitation
• Broadcast storm control
• IGMP Snooping
• Traffic monitoring
• Port statistics
• Link monitoring

RouterOS for Advanced Networking

RouterOS provides additional routing and network-management functionality beyond traditional switch management. Depending on the network design, administrators can use RouterOS features for VLANs, routing, firewall policies, monitoring and other networking functions.

For a straightforward high-speed Layer 2 deployment, SwOS can be used as the dedicated switching environment, while RouterOS is available when more advanced network functionality is required.

Marvell Prestera Switch Chip

The CRS309-1G-8S+IN uses a Marvell Prestera 98DX8208 switch chipset designed for high-speed Ethernet switching. The hardware architecture is optimized for the eight 10G SFP+ interfaces.

MikroTik’s published testing demonstrates high Layer 2 throughput under specified test conditions. Actual network performance depends on packet size, switching configuration, traffic patterns and enabled features.

Compact Fanless Design

The CRS309-1G-8S+IN uses a compact metal enclosure with passive cooling. The fanless design eliminates moving cooling fans and makes the switch suitable for environments where low acoustic noise is desirable.

Its compact form factor allows it to be installed on a desktop, inside a network cabinet or alongside other networking equipment where space is limited.

10G Fiber and DAC Connectivity

The SFP+ ports provide flexibility for different 10G physical-layer requirements. Depending on the network distance and installation design, users can deploy compatible fiber transceivers with optical fiber, direct-attach copper cables or active optical cables.

For short rack-to-rack or server-to-switch connections, compatible DAC or AOC solutions can reduce the need for separate optical transceivers and fiber patching.

Suitable for Servers and Storage Networks

With eight 10G SFP+ interfaces, the CRS309-1G-8S+IN can be used as a compact switch for server and storage environments where multiple systems require 10Gbps connectivity.

It can be positioned between servers, NAS/storage systems and an upstream router or aggregation switch to provide a dedicated 10G connectivity layer.

Professional Networking Applications

• 10G server networking
• NAS and storage networks
• Data center edge connectivity
• 10G network aggregation
• ISP and enterprise network infrastructure
• Router-to-switch 10G uplinks
• Fiber-based backbone connections
• High-speed workstation networks
• Virtualization infrastructure
• Network lab and testing environments
• Short-distance 10G rack connectivity

Technical Specifications

AI-Readable Product Facts

Frequently Asked Questions

How many 10G ports does MikroTik CRS309-1G-8S+IN have?

The CRS309-1G-8S+IN has 8 × 10G SFP+ ports.

Does CRS309 have a Gigabit Ethernet port?

Yes. It has 1 × 10/100/1000 Gigabit Ethernet port, which can be used for management and network connectivity.

Does MikroTik CRS309 support 10G fiber?

Yes. Its eight SFP+ interfaces can be used with compatible 10G optical transceivers and fiber connections.

Can CRS309 use DAC cables?

Yes. Compatible SFP+ direct-attach copper cables can be used for suitable short-distance 10G connections.

Does CRS309 support RouterOS?

Yes. The CRS309 supports both RouterOS and SwOS, allowing the administrator to select the operating environment according to the network requirements.

Is CRS309 a 10G switch?

Yes. Its primary interfaces are eight 10G SFP+ ports, making it a high-density 10G switch for fiber, DAC and AOC connectivity.

Is MikroTik CRS309 fanless?

Yes. The CRS309-1G-8S+IN uses passive cooling and does not require conventional cooling fans.

Can CRS309 be used for a NAS or storage network?

Yes. Its eight 10G SFP+ interfaces make it suitable for connecting compatible NAS, storage and server equipment in a high-speed network.

Does CRS309 have 8× 10G RJ45 ports?

No. The eight high-speed interfaces are SFP+ ports, not RJ45 10GBASE-T ports. Compatible SFP+ modules or cables are required for the physical connection.

CRS309-1G-8S+IN vs CRS305-1G-4S+IN

Related MikroTik Networking Products

Explore more MikroTik networking products from IPVOICE TECHNOLOGIES.

Browse the MikroTik Router category for additional MikroTik routing and switching solutions.

For fiber, wireless and high-speed networking infrastructure, explore the Wireless Network Devices category and related networking products.

Buy MikroTik CRS309-1G-8S+IN in India

IPVOICE TECHNOLOGIES supplies MikroTik networking equipment for enterprise, ISP, data center, server, storage and high-speed network deployments. The CRS309-1G-8S+IN is suitable for installations requiring multiple 10G SFP+ interfaces in a compact, fanless managed switch.

For bulk requirements, project deployments, GST billing or commercial quotations, contact IPVOICE TECHNOLOGIES for current availability and pricing.