• CRS312-4C+8XG-RM
  • CRS312-4C+8XG-RM


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8x10Gbps RJ45 ports, 4 combo 10Gbps RJ45/SFP+ ports.RouterOS L5 or SwOS. Dual redundant PSU. USB A. Serial RJ45

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CRS312-4C+8XG-RM – our first product with 10G RJ45 Ethernet ports. Moreover, it also has 4 x 10G combo ports: use them for 10G RJ45 Ethernet or 10G SFP+, when you need an additional fiber connection. Combo ports can be used alongside the 8 regular 10G RJ45 Ethernet ports at all times. These ports can also be software selected, so you can use RouterOS scripting, to decide which combo ports will be active. 

CRS312-4C+8XG-RM has a dual power supply for redundancy – no unexpected downtime when the deadlines are looming. It has a full size USB, a console port for configuration and a 1U rackmount case – fits all the standard racks.

You can choose between our legendary feature-packed RouterOS for booting or a simpler, but still powerful SwOS. If you would like the ability to use routing and other Layer 3 features in your CRS, use RouterOS. This switch has a great total non-blocking throughput of 120 Gbps, switching capacity of 240 Gbps and forwarding rate of 178 Mpps. CRS312-4C+8XG-RM – built for professionals, great for everyone!

Switching results

CRS312-4C+8XG-RM                                                      CRS312-4C-8XG all port switching results
Mode Configuration 1518 byte 512 byte 64 byte
kpps Mbps kpps Mbps kpps Mbps
Switching Non blocking Layer 2 throughput 9752,8 118438.2 28195,5 115488.8 178571,3 91428.5
Switching Non blocking Layer 2 capacity 9752,8 236876.5 28195,5 230977.5 178571,3 182857.0
Switching Non blocking Layer 1 throughput 9752,8 120100.0 28195,5 120100.0 178571,3 120100.0
Switching Non blocking Layer 1 capacity 9752,8 240200.0 28195,5 240200.0 178571,3 240200.0

Ethernet test results

CRS312-4C+8XG-RM                                             QCA9531 all port test
Mode Configuration 1518 byte 512 byte 64 byte
kpps Mbps kpps Mbps kpps Mbps
Bridging none (fast path) 37,4 454,2 82,8 339,1 162,5 83,2
Bridging 25 bridge filter rules 33,8 410,5 47,8 195,8 75,6 38,7
Routing none (fast path) 37,2 451,8 73,3 300,2 144,9 74,2
Routing 25 simple queues 36,4 442,0 52,4 214,6 54,4 27,9
Routing 25 ip filter rules 33,8 410,5 41,4 169,6 41,7 21,4

1.All tests are done with Xena Networks specialized test equipment (XenaBay),and done according to RFC2544 (Xena2544)

2.Max throughput is determined with 30+ second attempts with 0,1% packet loss tolerance in 64, 512, 1518 byte packet sizes

3.Test results show device maximum performance, and are reached using mentioned hardware and software configuration, different configurations most likely will result in lower results


Data sheet

CPU frequency
CPU Type
License level RouterOS
Size of RAM
Ethernet port #
Ethernet speed
Ethernet Combo ports
Max Power consumption
Serial Port
Number of USB ports
USB slot type
type A
Number of AC inputs
AC input range
100-240 V