MikroTik CRS312-4C+8XG-RM 12-Port Switch (4x 25G SFP28, 8x 10G SFP+, Rackmount)

Brand: MikroTik | Category: Network Switches

SKU: MT-CRS312-4C+8XG-RM | Part #: CRS312-4C+8XG-RM | MPN: CRS312-4C+8XG-RM

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At 340 Gbps switching capacity and 253 Mpps forwarding rate, the MikroTik CRS312-4C+8XG-RM achieves line-rate performance across all 12 ports simultaneously. This combination of throughput and packet-handling speed means the switch sustains full utilisation without dropping frames—a critical requirement for data centre aggregation layers where blocking equals cost and latency.

The CRS312-4C+8XG-RM combines four 25G SFP28 combo ports with eight dedicated 10G SFP+ ports, giving network engineers flexibility in port density and speed selection. Each of the four 25G SFP28 interfaces can operate as either 25G or 10G, allowing you to match infrastructure growth without forced hardware replacement. The eight 10G SFP+ ports handle traditional high-speed uplinks, making this MikroTik platform suitable for hybrid environments where 10G legacy infrastructure coexists with newer 25G deployments. This flexibility is why storage architects and data centre managers favour the CRS312-4C+8XG-RM for north-south traffic aggregation in mid-tier facilities.

Built on the Marvell Prestera 98DX8212 switching ASIC and powered by a dual-core ARM processor running RouterOS v7, the unit delivers both L2 and L3 switching intelligence in a single 1U rackmount form factor. The dual redundant power supply ensures operational continuity—a non-negotiable feature for production networks. With full VLAN support, multi-spanning tree (MSTP), IGMP snooping, LACP port aggregation, and port mirroring, the switch handles enterprise segmentation and traffic analysis without external controllers. At the routing layer, you get static routing, OSPF, BGP, and RIP, allowing the CRS312-4C+8XG-RM to function as a lightweight L3 aggregation point or core switch in smaller deployments. The REST API and SSH/CLI interfaces mean automation teams can integrate this platform into Ansible, Terraform, or custom provisioning workflows without friction.

Power efficiency matters in data centre economics. The CRS312-4C+8XG-RM draws a maximum of 40 W under full load, consuming roughly one-fifth the power of comparable Cisco or Juniper alternatives at equivalent port counts. This efficiency extends chassis lifespan and reduces cooling overhead—savings that compound across 50 or 100 units in a large deployment. Management is handled through Winbox (MikroTik's native GUI), a standards-based web interface, SNMP for monitoring integration, or REST API for programmatic control. Network operations teams appreciate the transparency of RouterOS and the absence of proprietary lock-in; you own the configuration, and you can audit every rule and interface setting without vendor limitations.

The CRS312-4C+8XG-RM occupies 1U of rack space and measures 443 x 228 x 44 mm, fitting standard 19-inch racks with front-facing SFP cages that allow cable runs without obstruction. Operating temperature range (0°C to 40°C) aligns with most data centre specifications, though the compact form factor and efficient cooling design mean it performs well even in warm cabinet positions. With 256 MB RAM and 16 MB flash storage, configuration capacity is sufficient for thousands of VLAN rules, static routes, and filtering policies typical of enterprise networks.

Performance Specifications & Deployment Context

• 340 Gbps non-blocking switching fabric; 253 Mpps forwarding rate ensures line-rate performance at full port utilisation across all 12 ports
• Four 25G SFP28 combo ports (each supporting 25G or 10G operation) plus eight dedicated 10G SFP+ ports; total 12 interfaces in 1U
• Marvell Prestera 98DX8212 ASIC with dual-core ARM CPU running RouterOS v7; supports OSPF, BGP, RIP, and static routing for L3 switching
• Dual redundant PSU with 40 W maximum power consumption; supports 100–240 V AC input at 50/60 Hz
• Enterprise L2 features include IEEE 802.1Q VLANs, MSTP, LACP link aggregation, IGMP snooping, and port mirroring for traffic analysis
• Management via Winbox GUI, web interface, SSH/CLI, SNMP, and REST API; fully scriptable for automation and integration with third-party orchestration platforms
• Compact 1U form factor (443 x 228 x 44 mm) with front-facing SFP cage; operating range 0°C to 40°C suits standard data centre deployment

Omnixon Global supplies the MikroTik CRS312-4C+8XG-RM and related networking infrastructure to data centres, AI facilities, and enterprises across the GCC, India, Southeast Asia, and Europe. We maintain stock in Dubai and handle rapid deployment, pre-configuration, and technical support. For integration planning, performance validation, or volume pricing on the CRS312-4C+8XG-RM or other MikroTik switching platforms, contact our network infrastructure team with an RFQ.