What are COM Express Computers?
COM Express (COM X) is a standardized, modular computer-on-module (COM) form factor defined by PICMG. It separates the core computing module (carrier board with CPU, memory, and chipset) from the application-specific baseboard (carrier board with I/O). This design allows system integrators and OEMs to develop custom hardware solutions by designing their own carrier board with the exact interfaces needed for their application, while leveraging a standardized, high-performance, and easily upgradeable computing core. This modularity drastically reduces development time and cost for specialized industrial systems.
Key Specifications and Architecture
A COM Express module is characterized by its compact size and high-density connectors. Key specifications vary by module type (Basic, Compact, Extended) but typically include:
-
Processor: Ranges from low-power Intel Atom/Celeron and ARM-based chips to high-performance Intel Core i-series and Xeon processors.
-
Memory: Soldered or socketed DDR4/DDR5 RAM, typically from 4GB to 32GB or more.
-
Storage: Support for SATA, NVMe via M.2, and eMMC.
-
Graphics: Integrated Intel UHD or Iris Xe graphics with support for multiple independent displays (LVDS, eDP, HDMI, DisplayPort).
-
Expansion: PCI Express lanes, USB 3.2/4.0, SATA, and Gigabit Ethernet interfaces are provided via the high-speed edge connector.
-
Form Factors: Standardized sizes like Mini (84mm x 55mm), Compact (95mm x 95mm), and Basic (125mm x 95mm).
Use Cases and Applications
The decoupled design of COM Express makes it ideal for applications requiring custom I/O, long lifecycles, and reliable performance in harsh environments. Primary use cases include:
-
Industrial Automation: Machine vision systems, PLCs, and robotic controllers.
-
Medical Devices: Patient monitors, diagnostic imaging equipment, and surgical systems.
-
Transportation: In-vehicle infotainment, railway control systems, and avionics.
-
Digital Signage & Kiosks: Interactive displays and point-of-sale terminals.
-
Military & Aerospace: Ruggedized computing platforms where customization and longevity are critical.
Comparing COM Express with Integrated Solutions
| Feature | COM Express (Modular) | Traditional Industrial PC (Integrated) |
|---|---|---|
| Customization | High. Design custom carrier board for specific I/O needs. | Low. Limited to pre-defined ports and expansion slots. |
| Development Time/Cost | Higher initial design cost, but lower per-unit cost for volume. Faster time-to-market for custom hardware. | Lower initial cost for single units, but no hardware customization. |
| Upgradability | Excellent. Swap the compute module for a new CPU generation while keeping the carrier board. | Limited. Often requires a full system replacement. |
| Size & Form Factor | Very compact core module, but final size depends on custom carrier. | Fixed, often larger chassis. |
| Best For | High-volume OEM products, specialized equipment, long-lifecycle projects. | General-purpose industrial computing, low-volume deployments, prototyping. |
Thinvent's COM Express Product Range
Thinvent offers a comprehensive portfolio of COM Express Type 10 modules and compatible systems designed for global industrial applications. Our modules leverage the latest Intel Core, Intel Atom, and ARM processor technologies to provide scalable performance from entry-level control to high-power compute. Key features across our range include extended temperature support for harsh environments, robust power design for 24/7 operation, and long-term availability guarantees crucial for medical and transportation projects. Whether you are an OEM building a new machine or a system integrator upgrading an existing platform, Thinvent's COM Express solutions provide the reliable, modular computing core needed to build innovative and durable industrial systems.
