# Stratus Pro nRF9151 Overview
## Board Layout
## Technical specifications and features
Most of the specifications outlined below are based on Nordic's [nRF9151 Product Specification](https://www.nordicsemi.com/Products/nRF9151).
**MCU**: Latest Gen Nordic nRF9151 SiP
* ARM Cortex-M33 with 1MB Flash
* 256kB RAM
* ARM® TrustZone®
* ARM® Cryptocell 310
* Up to 4x SPI, I2C, and UART with Easy DMA
* I2S w/ EasyDMA
* 4x PWM with EasyDMA
* 12bit SADC with EasyDMA
* 2x RTC
* PPI (Programmable peripheral interconnect) interface
**Modem**
* Transceiver and baseband
* 3GPP LTE release 14 LTE-M/NB-IoT support
* DECT NR+ ready
* GPS/GNSS receiver
* RF Transceiver for global coverage supporting bands:
* B1, B2, B3, B4, B5, B8, B12, B13, B17, B18, B19, B20, B25, B26, B28, B65 (new), B66, and B85 (new)
* Supports 4FF Nano SIM
* Pre-programmed MCUBoot bootloader
**nPM1300 Power Management IC**
* 800 mA battery charger
* Dual 200 mA buck DCDC regulator
* Battery fuel gauge controlled via I2C
* Battery charge status and protection
* Battery charging over USB-C
**Energy harvester IC**
* Onboard battery charger with solar energy harvester
* Continuous Charge Current Up to 1A
* Input supply voltage of 4.4-6V
* Supports battery types Li-ion, Li-Poly, and LiFePO4 chemistries
* Automatic charge current adjustment based on the output capability of the input power supply
**Board Operating Power Supply**
* Operating range 1.8 to 5.5V
* External LiPo battery connection (2 Pin JST type)
* Maximum output current: 800mA
**Stratus Output Voltages (Accessible via Headers)**
* 1.8V
* 3.3V
* 5V (VUSB)
* VBAT
**USB-TYPE-C**
* USB-to-Serial communication
* Device Firmware Update (DFU) over USB
* Application firmware programming and debugging over USB
* LiPo battery charging
**Debugger & Programmer**
* Supports J-Link and CMSIS-DAP-based programmers
* Onboard 10-pin 0.05" (1.27mm) SWD/JTAG pin connector
**User I/O**
* Feather compatible header
* 28 user-programmable GPIOs
* 2 x push buttons (1 x Reset, 1 x user-programmable)
* 1 x user-programmable LED
**Antenna connections**
* 1 x U.FL for LTE-M/NB-IoT
* 1 x U.FL for passive GPS antenna
**Onboard sensors**
* STMicroelectronics LIS2DH MEMS digital output motion sensor: ultra-low-power high-performance 3-axis Femto accelerometer
* nPM1300 Battery fuel gauge
* The internal temperature sensor of nRF9151
**External Storage**
* 16 KBit I2C EEPROM memory (24CW160T)
**External Peripheral Interface**
* Stratus Pro board has a QWIIC connector to interface external shields, sensors, and much more.
**Power switch**
* SPDT slide switch for turning ON/OFF the power to the Stratus Pro board
**SIM Compatibility**
* 4FF Nano SIM card holder
* eSIM footprint to solder your own
* Software-based SIM support
**Prepaid Data**
* 500 MB of cellular data
* 250 SMS
* 10-year data validity
* Service available in 100+ countries (LTE + NB-IoT)
**Physical Size**
* 66.04 mm x 25.40 mm
## Download the Full Datasheet
{% file src="/files/s0Wwqywvuc1L0RhMoVyr" %}
Stratus Pro Reference Manual
{% endfile %}
## What's included in the box
Congratulations on receiving your Conexio Stratus Pro kit. Your package includes:
**Hardware**
* 1 x Conexio Stratus Pro nRF9151 dev kit.
* 1 x 1NCE IoT SIM card
* 1 x Safety instructions card
**Preloaded Firmware**
Out-of-the-box, Stratus Pro kit comes with pre-loaded firmware that periodically blinks the LED and samples the sensors.
---
# Agent Instructions: Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter:
```
GET https://docs.conexiotech.com/master/stratus-overview.md?ask=
```
The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.