Mikrotik RouterBOARD RBM33G Powerful OEM board 3x Gigabit LAN and 2x miniPCIe slots



The RBM33G is a fully featured RouterBOARD device perfect for using in your own enclosure or building a custom solution. It uses the same PCB form factor and same mounting holes as it’s predecessors (RB433 and RB953 series).

The RBM33G features a new two core CPU running at 880 MHz and 256 MB of DDR3 RAM and three gigabit ethernet ports. It is specially designed for setups that requires two 3G/LTE modems. You can use e.g.:

  • Two miniPCIe 3G/LTE modems for multiple mobile connections (two SIM slots provided)
  • One miniPCIe and One USB 3G/LTE modem leaving other miniPCIe slot for 802.11 wireless card (consult product Quick Guide for details)

The included USB 2.0/3.0 port can be used either for 3G/LTE modem or an external hard drive (consult product Quick Guide for details). For expanding storage, microSD and a PCIe M.2 slots are provided.

The RBM33G comes fitted with a RS232 serial port for console access. The device can be powered by PoE through it’s gigabit ethernet connector or through the DC power jack.

Technical Description

  • Specifications
    • Product code    RBM33G
    • Architecture    MMIPS
    • CPU    MT7621A
    • CPU core count    2
    • CPU nominal frequency    880 MHz
    • CPU Threads count    4
    • License level    4
    • Size of RAM    256 MB
    • Storage size    16 MB
    • Storage type    FLASH
  • Tested ambient temperature    -40°C to 70°C
  • Powering
    • PoE in    Passive PoE
    • PoE in input Voltage    11-32 V
    • Number of DC inputs    2 (PoE-IN, DC jack)
    • DC jack input Voltage    11-32 V
    • Max power consumption    24 W
    • Max power consumption without attachments    19 W
  • Ethernet
    • 10/100/1000 Ethernet ports    3
  • Peripherals
    • Number of SIM slots    2 Modem (Mini SIM)
    • M.2 slots    1
    • MiniPCI-e slots    2
    • Serial port    RS232
    • Number of USB ports    1
    • USB Power Reset    Yes
    • USB slot type    USB 3.0 type A
    • Max USB current (A)    1

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