The RB850Gx2 is a five port Gigabit ethernet router. Comparing to the RB450G, the RB850Gx2 is much faster, with a dual core CPU, yet it still retains the same form factor, and will fit into the same enclosures.

The device is powered by a 533MHz P1023 PPC CPU, and also includes a temperature sensor and voltage monitor.

Product specifications

Product codeRB850Gx2
CPU nominal frequency (per core)533 MHz
CPU core count2
Size of RAM512 MB
Storage typeNAND
Storage size512 MB
10/100/1000 Ethernet ports5
Power Jack2
PoE inYes
Dimensions90mm x 115mm
Operating SystemRouterOS
License level5
Tested ambient temperature-60°C .. +70°C tested
Max Power consumption8W
Voltage MonitorYes
PCB temperature monitorYes
CPU temperature monitorYes
Serial portRS232
Supported Voltage8 V - 28 V
Memory card typemicroSD
Memory Cards1

Ethernet test results

RB850Gx2P1023 1G all port test
ModeConfiguration1518 byte512 byte64 byte
Bridgingnone (fast path)161.91966.1441.81809.6479.1245.3
Bridging25 bridge filter rules161.91966.1203.7834.4196.5100.6
Routingnone (fast path)161.91966.1343.41406.6361.1184.9
Routing25 simple queues161.91966.1299.41226.3312.7160.1
Routing25 ip filter rules124.51511.9130.7535.3130.766.9
  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. Values in Italic indicate that max throughput was reached without maxing out CPU, but because board interface configuration was maxed out
  4. Test results show device maximum performance, and are reached using mentioned hardware and software configuration, different configurations most likely will result in lower results