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ALEX-R5 series

Ultra-small LTE-M / NB-IoT SiP with Secure Cloud

Miniature form factor, integrating u-blox UBX-R5 and UBX-M8 chipsets

  • Designed to last an IoT lifetime and 5G- ready
  • Super low power, accurate, and reliable positioning with u‑blox M8 GNSS receiver
  • Optimized for ultra-low power IoT applications
  • Built-in, hardware-based Secure Cloud functionality supporting IoT-Security-as-a-Service
  • Concurrent accurate positioning and LTE signalling, as needed by tracking applications
14.0 x 14.0 x 1.5 mm



适合多区域使用的带有集成 u-blox M8 GNSS 接收机的安全云 LTE-M 和 NB-IoT SiP 组合模块

Cellular features 
LTE bands1, 2, 3, 4, 5, 8, 12, 13, 18, 19, 20, 25, 26, 28, 66, 71, 85
LTE power class [dBm]23
Data ratesM1 (375 kbit/s DL and 1200 kbit/s UL), NB2 (125 kbit/s DL and 140 kbit/s UL)
DDC (I2C compliant)1
最高温度【°C】 85
尺寸【mm】14.0 x 14.0 x 1.5

The very small ALEX-R510M8S delivers LTE-M and NB-IoT connectivity with GNSS positioning. It combines the secure u‑blox UBX-R5 IoT chip and the u‑blox UBX-M8230 GNSS chip with the highest level of integration in a System-in-Package (SiP).

Measuring just 14 x 14 x 1.5 mm, ALEX-R510M8S occupies less than 50% of SARA-R5’s PCB without affecting the overall LTE and positioning performance. It is ideal for size-constrained devices like people and animal wearables, small asset trackers, portable healthcare systems and other small IoT applications.

The Super-E mode of the GNSS receiver provides ALEXR510M8S with an ideal balance between low power and good performance. It is optimized for power-sensitive and battery-powered applications, featuring a market-leading sub-μA current consumption in PSM mode.

ALEX-R510M8S offers a dedicated GNSS serial interface and a dedicated GNSS antenna interface, which provides highly reliable and accurate positioning data concurrent with LTE communication. In addition, the module offers unique hybrid positioning, in which the GNSS position is enhanced with u‑blox CellLocate® data, providing location always and everywhere.

u‑blox Secure Cloud functionality, which supports IoT Security-as-a-Service, makes ALEX-R510M8S the ideal choice for devices that transmit critical and confidential information.

With all in-house technology and full hardware and software ownership, u‑blox can guarantee long-term device availability and provide lifetime support of the entire platform, down to the chipset level. u‑blox R5 series modules are the only products in the market with a real LTE and GNSS chip-down integration, supporting the standard LTE-M and NB-IoT Power Class 3 of 23 dBm maximum output power, yielding better performance at cell edges and under more challenging network conditions.

The LTE-M and NB-IoT module supports a comprehensive set of 3GPP Rel. 14 features that are relevant for IoT applications, like improvements to power consumption, coverage, data rate, mobility, and positioning. It is 5G-ready, meaning customers will be able to upgrade software on their deployed devices once 5G LTE has been rolled out by mobile operators, which greatly improves product scalability and lifetime.