Particle B Series SoM

Cellular + Bluetooth in a M.2 SoM

Image of the B Series SoM

The B Series is a powerful cellular-enabled system-on-a-module (SoM) designed for mass-production. It includes the Nordic nRF52840 and with support for cellular and Bluetooth LE.


B402 B523
u-blox SARA R410M-02-B Quectel EG91-E
LTE Cat M1 LTE Cat 1 with 3G and 2G fallback
3GPP LTE Cat M1 Release 13 3GPP E-UTRA Release 13
LTE Cat M1 bands: 2, 3, 4, 5, 8, 12, 13, 20, 28 LTE Cat 1 bands: 1, 3, 7, 8, 20, 28A
Supported in the US, Canada, and Mexico only Support for Europe only at this time
Cellular carrier list

Hardware specifications:

Main processor:

Nordic Semiconductor nRF52840 SoC

  • ARM Cortex-M4F 32-bit processor @ 64MHz
  • 1MB flash, 256KB RAM
  • Bluetooth 5: 2 Mbps, 1 Mbps, 500 Kbps, 125 Kbps
  • 20 mixed signal GPIO (6 x Analog, 8 x PWM), UART, I2C, SPI
  • Supports DSP instructions, HW accelerated Floating Point Unit (FPU) calculations
  • ARM TrustZone CryptoCell-310 Cryptographic and security module
  • Up to +8 dBm TX power (down to -20 dBm in 4 dB steps)
  • NFC-A radio

General specifications:

  • M.2 NGFF 67-pin connector to your base board
  • Up to +8 dBm TX power (down to -20 dBm in 4 dB steps)
  • NFC-A tag (requires external antenna)
  • On-board additional 4MB SPI flash
  • MFF2 SMD Particle SIM card
  • U.FL connectors for external cellular and Bluetooth antennas
  • FCC and PTCRB certified
  • RoHS compliant (lead-free)