USB840F, Open Source BLE 5, Thread, Zigbee USB Dongle

USB840F is a low cost, open source, certified nRF52840 USB dongle supporting Bluetooth 5, Thread, or Zigbee radio protocols. 


Dongle USB840F


USB840F is in market ready enclosure.  Upon completion of firmware and app development, you can begin marketing products.

A BlueNor BT840F Bluetooth 5, Thread, Zigbee module is the main component inside USB840F.

The 64 MHz Cortex M4F MCU in nRF52 relays messages between a PC and any node in the mesh network. A CryptoCell 310 co-processor is embedded in BT840 Series modules. Secured messages can be decrypted and authenticated when relayed between a PC and Bluetooth SIG mesh.

A TAG connect cable TC2050-IDC-NL-050-ALL can be used to connect to nRF52DK to load your own bootloader with private key.

Dongles are preloaded with Nordic USB CDC ACM secure boot loader. It can be booted and firmware updated from a PC. 

Size: 52x21x21mm.


  • FCC: X8WBT840.

  • Industrial Canada: 4100A-BT840.

  • CE: Certified.

  • QDID: 108621

Availability: Production.

USB840F, Open Source USB Dongle for BLE 5, Thread, Zigbee
from 17.78

USB840F USB Dongle with enclosure.

FCC, IC, CE Certified, TELEC, RCM pending

$17.78 each at 1 pcs; $14.82 each at 10 pcs; $13.63 each at 100 pcs; $11.85 each at 1000 pcs.

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