Specifications
Review the technical specifications of the ALPON X4 edge computer, including processor, memory, and connectivity. Evaluate its performance for industrial use cases.
ALPON X4 specifications
Complete hardware and electrical specifications for the ALPON X4: an industrial edge computer built on Raspberry Pi Compute Module 4 with global LTE Cat 4 connectivity, eSIM, dual-band Wi-Fi 5, and ALPON Cloud fleet management. Use this reference for mechanical integration, power budgeting, radio planning, and regulatory compliance. Built on Raspberry Pi.
The ALPON X4 ships with a Broadcom BCM2711 quad-core Cortex-A72 @ 1.5 GHz on Raspberry Pi CM4, up to 8 GB LPDDR4 RAM, up to 32 GB eMMC flash storage, 1 Gbps + 100 Mbps Ethernet with optional PoE+ on the ETH/G port, LTE Cat 4 with eSIM (eUICC), Wi-Fi 5 dual-band, Bluetooth 5.0 / BLE, GNSS, and an Infineon SLB 9670 TPM 2.0. The fanless aluminum enclosure operates from -20 °C to +60 °C with MTBF over 13 years at 25 °C. Built on Raspberry Pi.
Mechanical & environmental
The ALPON X4 uses a fully aluminum, fanless enclosure. The top face acts as a passive cooling surface and must remain unobstructed to ensure thermal performance. DIN rail and wall mount kits are available as optional accessories.
Keep the aluminum cooling surface exposed to unobstructed airflow. The documented ambient operating range is -20 °C to +60 °C; actual thermal performance depends on load and installation. Consult Power & Mounting and obtain verified mechanical guidance for the installation rather than treating an unspecified clearance as a guaranteed minimum.
System & compute
The host platform is the Raspberry Pi Compute Module 4 with a Broadcom BCM2711 quad-core Cortex-A72 SoC. The ALPON X4 ships with a CR1220-backed real-time clock rated for up to 10 years of timekeeping without external power.
Memory & storage
System memory and persistent storage are supplied by the CM4 module. Multiple memory and storage capacities are available as configuration options.
Input & output
All externally accessible I/O is exposed on the front and rear faces of the enclosure. For pinouts and GPIO mapping, see the Physical Layout & I/O reference.
GPIO 5, PB2 on GPIO 6)
The RJ45-style GPIO Add-on port is not an Ethernet or PoE port. Connecting an Ethernet or PoE cable to this port causes permanent hardware damage. Use this port only for Sixfab Edge add-on modules.
Total current across both USB 2.0 ports is shared and capped at 1 A. Plan peripheral budgets so the combined draw stays within this envelope.
Cellular
The integrated LTE Cat 4 modem supports global LTE bands. eSIM (eUICC SGP.22) is soldered on-board for remote profile provisioning and carrier switching without a physical SIM swap.
Wi-Fi, Bluetooth & GNSS
Short-range wireless and positioning are provided by the CM4's integrated radio plus a dedicated GNSS receiver. Antenna naming uses the standard Sixfab convention: LTE Main, LTE Diversity, GNSS/GPS, Wi-Fi/Bluetooth.
For full antenna pattern, gain, and connector specifications, see Antenna connectors.
Power
The ALPON X4 supports three alternative power inputs. Use only one at a time: a 9–30 V DC screw terminal, a 15 V, 1.8 A (27 W) USB-C PD supply, or optional PoE+ (IEEE 802.3at) on ETH/G. DC provides full peripheral functionality at 12–30 V; below 12 V operation is restricted. Typical system draw is 7–14 W with a documented 27 W peak, depending on workload and peripherals.
Use only one power input and disconnect it before changing sources. Do not supply below 9 V or above 30 V at the DC terminal. PoE+ delivers up to 25 W, less than the 27 W simultaneous system peak. Reduce peripheral load or select DC/USB-C PD for that workload; individual output limits are not a guarantee that every maximum load can run simultaneously.
Security
The ALPON X4 includes an Infineon TPM 2.0 and a hardware watchdog. The TPM's presence does not establish that secure boot or measured boot is configured. The watchdog resets the device if its heartbeat stops while enabled; one software component must own that heartbeat. The VPN connection is dedicated to ALPON Cloud services, not a guarantee that all application traffic uses the tunnel.
Software
The device ships with the pre-installed ALPON X4 OS: a Raspberry Pi compatible Linux distribution with the ALPON Edge software stack. Application workloads deploy as containers via ALPON Cloud, with remote terminal, OTA updates, and fleet monitoring available from a single dashboard.
Expansion
Hardware expansion is provided through the GPIO Add-on port and USB ports, plus official Sixfab Edge add-on modules. eSIM remote provisioning supports the GSMA SGP.22 Consumer profile.
Compliance
Certification is pending; the listed approvals have not been issued. Do not treat this list as evidence of market authorization. Consult Safety & Compliance and contact Sixfab for current region-specific status before deployment.
1 IP40 protection against solid objects greater than 1 mm. Not rated for liquid ingress.
2 MTBF (Mean Time Between Failures) calculated per Telcordia SR-332 at the specified ambient temperatures.
3 ETH/G remains a 1 Gbps data port. On PoE-enabled variants, PoE+ adds power on this same port; it does not replace Ethernet data. ETH (100 Mbps) is data-only.
4 This product supports only 4G/LTE networks, with no fallback to 2G/3G. Performance on non-4G/LTE networks is not guaranteed.
5 Data rates are theoretical maxima. Actual throughput depends on network conditions, band, and carrier.
6 Full peripheral functionality requires 12–30 V at the DC terminal. Below 12 V, the listed peripheral functions are unavailable; do not operate the DC input outside its 9–30 V rating.
7 All listed approvals are pending, not issued. See Safety & Compliance for current status.
Updated about 17 hours ago