MikroTik KNOT IoT Gateway NB/CAT-M BLE GPS PoE
The MikroTik KNOT (RB924i-2nD-BT5&BG77) is a universal IoT gateway — QCA9531 single-core MIPSBE at 650 MHz, 64 MB RAM, 128 MB NAND, RouterOS v7 License 4, NB-IoT/CAT-M cellular modem (Nano SIM), 2.4 GHz 802.11b/g/n Wi-Fi 4 (300 Mbps, 1.5 dBi), Bluetooth 5.2 (uUFL connector), GPS (SMA female), RS485 serial console, 2× 100 Mbps Ethernet (PoE-in 802.3af/at on Ether1, passive PoE-out up to 57V 12W on Ether2), microUSB, DIN rail mount + K-47 wall mount included, IP20, passive cooling, 122 × 87 × 26 mm, -40°C to +70°C, MTBF ~100,000 hours at 25°C. CE, FCC, IC, EAC, RoHS. Includes 24V 1.2A adapter, K-47 wall mount, USB OTG cable, DIN rail mount. USD 99.00.
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The MikroTik KNOT is a universal IoT gateway at USD 99.00 — NB-IoT/CAT-M cellular, 2.4 GHz Wi-Fi 4, Bluetooth 5.2, GPS, PoE-in, and passive PoE-out in a single DIN-rail-mountable enclosure running RouterOS v7. MikroTik's own framing: "bring flexible low-cost connectivity to the most remote or tricky areas."
**NB-IoT / CAT-M cellular — low-cost, low-bandwidth wide-area connectivity**
The KNOT uses Narrow Band and CAT-M cellular technology — supported by countless mobile operators globally, including Canadian carriers. NB/CAT-M monthly data plans cost significantly less than LTE — suited for deployments transmitting only a few megabytes per day: vending machines, temperature sensors, liquid level monitors, electricity meters, and remote relay control. One Nano SIM slot. CAT-M and GPS interfaces both use SMA female connectors — supports external antenna attachment.
**Modbus TCP bridge — wired sensors to cloud**
Converts RS485 Modbus protocol to TCP — enables wired Modbus sensors (electricity meters, relays, industrial sensors) to forward readings to a Modbus server over cellular or Ethernet without a separate protocol converter.
**Bluetooth 5.2 — BLE asset tracking and telemetry**
Supports any BLE tag sending advertisement packets — iBeacon, Eddystone, or any proprietary format. Powerful packet filters forward only relevant BLE data to the TCP/IP network via HTTPS or MQTT.
**IC certified — Canadian market ready**
CE, FCC, IC, EAC, RoHS — confirmed ISED certification for compliant commercial sale and deployment across Canada.
**Includes:** 24V 1.2A power adapter, K-47 wall mount set, USB OTG cable, DIN rail mount set.
- Product code
- RB924i-2nD-BT5&BG77
- Architecture
- MIPSBE
- CPU
- QCA9531
- CPU core count
- 1
- CPU nominal frequency
- 650 MHz
- Switch chip model
- QCA9531
- RouterOS License
- 4
- Operating System
- RouterOS
- Size of RAM
- 64 MB
- Storage size
- 128MB
- Storage type
- NAND
- MTBF
- Approximately 100'000 hours at 25C
- Tested ambient temperature
- -40°C to 70°C
- Number of DC inputs
- 3 (PoE-IN, DC jack, MicroUSB)
- DC jack input Voltage
- 12-57 V
- Max Power consumption
- 18W
- Max power consumption without attachments
- 5W
- Cooling type
- Passive
- PoE in
- 802.3af/at
- PoE in input Voltage
- 18-57 V
- PoE out ports
- Ether2
- PoE out
- Passive PoE up to 57V
- Total output power
- 12 W
- 10/100 Ethernet ports
- 2
- Dimensions
- 122 x 87 x 26 mm
- Number of SIM slots
- 1 Modem (Nano SIM)
- Serial port
- RS485
- Number of USB ports
- 1
- USB slot type
- microUSB type AB
- Max USB current (A)
- 1
- Voltage Monitor
- Yes
- PCB temperature monitor
- Yes
- Wireless 2.4 GHz Max data rate
- 300 Mbit/s
- Wireless 2.4 GHz number of chains
- 2
- Wireless 2.4 GHz standards
- 802.11b/g/n
- Antenna gain dBi for 2.4 GHz
- 1.5
- Wireless 2.4 GHz chip model
- QCA9531
- MicroUSB input Voltage
- 5V
- Wireless 2.4 GHz generation
- Wi-Fi 4
- Certification
- CE, FCC, IC, EAC, ROHS
- Bluetooth version
- 5.2
- Bluetooth RF connector type
- uUFL
- IP
- IP20
