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Strato Pi Max XL

Raspberry Pi CM4-based industrial controller, DIN rail mounted, with Wi-Fi and BLE wireless connectivity, dual Ethernet ports, dual SD, eMMC and SSD storage options and two USB ports. Support for up to four embedded expansion boards extends capabilities to encompass serial (RS485/RS232) and CAN bus interfaces, digital I/O, and support for an uninterruptible power supply (UPS).

From 525.00 + tax

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One module, infinite possibilities

Strato Pi Max XL is an extremely versatile industrial server, based on the Raspberry Pi Compute Module 4, suitable for use in professional and industrial applications where reliability and service continuity are key requirements, and housed in a compact DIN rail case.

Strato Pi Max XL can be used for an incredible range of applications, from data acquisition and control, to home and building automation, as well as access control, hotel room control solutions, environmental monitoring and many others.

Strato Pi Max XL comes pre-installed with Raspberry Pi Compute Module 4 or Zymbit Secure Compute Module (SCM).
An optional Compute Module 4 Antenna Kit can be fitted on the top side of the enclosure and internally wired to the Compute Module.

Harness the full potential of Strato Pi Max XL by combining it with these optional expansions:



  • 9 modules DIN rail case

Power supply:

  • 10-50 Vdc power supply, on pluggable 5.08 mm pitch terminal block, with surge and reverse polarity protection, and 3.3 A resettable fuse
  • Voltage and current monitoring of power supply input voltage and current

Processing cores:

  • Compatible with all versions of Raspberry Pi Compute Module 4, and with Zymbit Secure Compute Module (SCM)
  • Powerful and user-programmable 32 bit Raspberry RP2040 microcontroller based on a dual ARM Cortex-M0+ core clocked at 133 MHz, with 264 kB on-chip SRAM ,16 MB Flash memory and 2 kB SRAM with EEPROM backup. The RP2040 is interconnected to the Raspberry Pi via I²C, USB and UART
  • The RP2040 microcontroller handles all housekeeping tasks, including Compute Module watchdog, power management, mass storage boot sequence control and expansion boards detection and control


  • One 10/100/1000 and one 10/100 Ethernet port
  • Two USB 2.0 type-A ports, with individual power control and fault detection

Optional Connectivity:

Optional Inputs/Outputs:

High reliability and security:

  • The hardware watchdog independently monitors the Compute Module, and is capable of performing a full power-cycle of the Compute Module. The hardware watchdog can also control the microSD switch matrix, swapping the boot card in case the watchdog is triggered, or disabling the SSD in order to boot from the eMMC or microSD
  • The Compute Module can control the Reset and Bootsel lines of the RP2040, allowing in-field firmware upgrades, but also development and debugging without external hardware
  • Internal fan for active cooling, with configurable automatic activation based on current load and internal temperature
  • Microchip ATECC608 secure element chip
  • Temperature sensors for system temperature monitoring
  • Highly accurate real time clock with temperature compensated crystal oscillator (TCXO) and replaceable CR1220 Lithium / Manganese Dioxide back-up battery
  • 3-axis accelerometer for motion and tamper detection


  • 4 internal expansion slots for X2 Series Expansion boards. Installed boards are detected and identified for automatic configuration. Can be powered off to save power in stand-by or low power modes
  • Flexible mass storage options: eMMC, dual microSD, high performance M.2 PCIe SSD
  • Dual microSD card architecture. Strato Pi Max XL routes its two microSD card holders to the Compute Module through a high-speed switching matrix, controlled by the on-board RP2040 microcontroller. Each SD card can be set as the boot card, with the other available as additional storage. This enables for separate OS/data storage, SD
    redundancy and in-field full-system upgrades. The microSD slots are hidden, and can be accessed opening the case
  • Front panel configurable status LEDs and push-button
  • Variable pitch piezoelectric buzzer, for acoustic feedback



Power supply operating voltage(VS)

⎓dc 24 V nominal (range 10-50 V), max 3.0 A. An absolute maximum input voltage of 60 V is tolerated, with reduced surge protection

Reverse polarity and surge protection with 3.3 A resettable fuse

Current consumption at VS+ 12 V⎓

including Raspberry Pi CM 4, with GB Ethernet connected, M.2 PCIe SSD, no USB devices, no UPS expansion board

low CPU load: 0.37 A,

100% CPU load, before throttling: 0.51 A

Current consumption at VS+ 24 V⎓

including Raspberry Pi CM 4, with GB Ethernet connected, M.2 PCIe SSD, no USB devices, no UPS expansion board

low CPU load: 0.19 A,

100% CPU load, before throttling: 0.28 A

Current consumption at VS+ 24 V⎓

including Raspberry Pi CM 4, with GB Ethernet connected, M.2 PCIe SSD, no USB devices, UPS expansion board, VSO on 8 W, UPS enabled, battery charging

low CPU load: 0.9 A
USB1 port output current 500 mA (Max)
USB2 port output current 500 mA (Max)
Raspberry platform compatibility Raspberry Pi Compute Module 4

Zymbit SCM4

Sfera Labs X2 4 slots
PCle M.2 form factor 2242
Oscillator frequency 32768 kHz
Frequency tolerance ±3 ppm
Backup battery Only use CR1220 or BR1220 Lithium / Manganese Dioxide (Li/MnO2) batteries.

Expected battery life without main power supply: 3 or more years, depending on environmental conditions

Capacity 16 Kbit (2048 x 8 bits)
SRAM r/w cycles Infinite
EEPROM store cycles > 1000000
Data retention > 200 years
Range 2g/±4g/±8g/±16g full scale
Data rates From 1.6 Hz to 1600 Hz
Bandwidth Up to 800 Hz
Temperature accuracy ±2 °C
Resolution 11 bits (0.125 °C)
Voltage range 0…58 V
Total Unadjusted Error (TUE) ±2.5 % of full-scale
Resolution 12 bits (8.7 RP2040 ENOB)
Voltage range 0…4 A
Total Unadjusted Error (TUE) ±2.5 % of full-scale
Resolution 12 bits (8.7 RP2040 ENOB)
Electromagnetic immunity compliance EN 61000-4-2: 2009 (ESD)

EN 61000-4-3: 2020 (Radiated RF Field)

EN 61000-4-4: 2012 (Burst/fast transient)

EN 61000-4-5: 2014 / A1: 2017 (Surge)

EN 61000-4-6: 2014 / AC: 2015 (Conducted)

EN 61000-4-8: 2010 (Power freq. magnetic field)

Operating temperature -20…+60 °C
Storage temperature -30…+80 °C
Altitude Up to 2000 m
Humidity 5% to 95% RH noncondensing
Protection degree IP20
5.08 mm pitch terminal block characteristics (power supply) Maximum conductor cross section: 3.3 mm2


Recommended stripping length: 7 mm

Screw thread: M3

Maximum screws tightening torque: 0.5 Nm

Dimensions 9 module Din Rail enclosure

width: 160.2 mm

height: 90.5mm

depth: 62.0mm

Weight 260 g (including Raspberry Pi Compute Module, M.2 PCIe SSD; not including expansion boards, Compute Module 4 Antenna Kit)



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