RBM33G
Powerful OEM board with three Gigabit LAN and two 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.
Specifications
| Product code | RBM33G |
| Architecture | MMIPS |
| CPU | MT7621A |
| CPU core count | 2 |
| CPU nominal frequency | 880 MHz |
| CPU Threads count | 4 |
| Switch chip model | MT7621A |
| RouterOS license | 4 |
| Operating System | RouterOS |
| Size of RAM | 256 MB |
| Storage size | 16 MB |
| Storage type | FLASH |
| MTBF | Approximately 100'000 hours at 25C |
| Tested ambient temperature | -40°C to 70°C |
| IPsec hardware acceleration | Yes |
Powering
| Number of DC inputs | 2 (PoE-IN, DC jack) |
| DC jack input Voltage | 11-28 V |
| Max power consumption | 24 W |
| Max power consumption without attachments | 5 W |
| Cooling type | Passive |
| PoE in | Passive PoE |
| PoE in input Voltage | 11-28 V |
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 console port | RS232 + GPIO header |
| Number of USB ports | 1 |
| USB Power Reset | Yes |
| USB slot type | USB 3.0 type A |
| Max USB current (A) | 1 |
| Number of M.2 slots | 1 |
Certification & Approvals
| Certification | CE, EAC, ROHS |
Ethernet test results
| RBM33G | MT7621A (880Mhz) 1G all port test | ||||||
| Mode | Configuration | 1518 byte | 512 byte | 64 byte | |||
| kpps | Mbps | kpps | Mbps | kpps | Mbps | ||
| Bridging | none (fast path) | 145.3 | 1764 | 446.8 | 1830.1 | 658.6 | 358.3 |
| Bridging | 25 bridge filter rules | 118.4 | 1437.8 | 122.2 | 500.4 | 121.5 | 66.1 |
| Routing | none (fast path) | 148.4 | 1802.2 | 450.1 | 1843.6 | 601.2 | 327.1 |
| Routing | 25 simple queues | 114.5 | 1391 | 119.3 | 488.5 | 119.3 | 64.9 |
| Routing | 25 ip filter rules | 63.1 | 766.4 | 64.8 | 265.2 | 64.4 | 35 |
IPsec test results
| RBM33G | MT7621A IPsec throughput | ||||||
| Mode | Configuration | 1400 byte | 512 byte | 64 byte | |||
| kpps | Mbps | kpps | Mbps | kpps | Mbps | ||
| Single tunnel | AES-128-CBC + SHA1 | 20.7 | 231.8 | 21.5 | 88.1 | 21.3 | 11.6 |
| 256 tunnels | AES-128-CBC + SHA1 | 12.1 | 135.5 | 12.3 | 50.4 | 12.7 | 6.9 |
| 256 tunnels | AES-128-CBC + SHA256 | 12.2 | 136.6 | 12.4 | 50.8 | 12.4 | 6.7 |
| 256 tunnels | AES-256-CBC + SHA1 | 12.1 | 135.5 | 12.3 | 50.4 | 12.4 | 6.7 |
| 256 tunnels | AES-256-CBC + SHA256 | 10.5 | 117.6 | 12.6 | 51.6 | 12.4 | 6.7 |