COM Express to COM‑HPC shift
A whitepaper argues the industry is moving from COM Express to COM‑HPC modules for next‑gen embedded systems and highlights the ARBOR COMX‑A300 with PCIe Gen5 and DDR5 as an example. The write‑up frames COM‑HPC as a path to more tightly integrated, high‑performance edge compute modules. (x.com)
A computer-on-module is the processor part of a system on a small board that plugs into a carrier board, and the newer COM‑HPC format is being positioned as the next step up from COM Express for higher-bandwidth embedded systems. (picmg.org) PICMG, the standards group behind both formats, says COM‑HPC was ratified in 2021 and is aimed at higher power, faster input-output, and server-class bandwidth than earlier module designs. PICMG released COM‑HPC revision 1.3 on March 10, 2026. (picmg.org; picmg.org) The pitch is straightforward: older module standards can run out of lanes, pins, and power as edge systems add more cameras, accelerators, storage, and networking. PICMG says COM‑HPC targets “very high I/O and computer performance levels” with support for features including newer PCI Express links and higher-speed memory. (picmg.org; picmg.org) That is the backdrop for ARBOR Technology’s recent whitepaper, which argues designers building next-generation embedded and edge systems should move from COM Express to COM‑HPC. The paper uses ARBOR’s COMX‑A300 as its example of what that migration looks like in a shipping module. (arbor-technology.com) ARBOR says the COMX‑A300 is a COM‑HPC Client Size A module built around Intel Core Ultra Processor Series 2 chips, also known as Arrow Lake U and H, with dual-channel Double Data Rate 5 memory up to 128 gigabytes at 6400 mega transfers per second. The company also lists PCI Express Gen 5, Universal Serial Bus 4, and support for four independent 4K displays. (arbor-technology.com) PICMG’s product listing for the same module describes the COMX‑A300 as a COM‑HPC Client Size A design with Intel Core Ultra 2 processors, DDR5 memory up to 96 gigabytes at 5600 mega transfers per second, and multiple high-speed input-output options. The difference in posted memory figures suggests buyers should check the latest datasheet and board revision before designing around a specific configuration. (picmg.org; arbor-technology.com) COM‑HPC also changes the physical envelope. PICMG says the standard spans several client and server sizes, from compact client modules to larger server modules, giving vendors more room for pins, power delivery, and cooling than earlier small-form-factor approaches. (picmg.org) COM Express is not disappearing overnight. PICMG still describes COM Express as one of the most successful computer-on-module standards in embedded computing, while presenting COM‑HPC as its next-generation successor for designs that need more headroom. (picmg.org; picmg.org) ARBOR announced the COMX‑A300 on November 4, 2025, and framed it around edge artificial intelligence and industrial computing workloads. The company’s whitepaper extends that product launch into a broader claim that future embedded systems will need tighter integration of compute, memory, and high-speed links on standardized modules. (arbor-technology.com; arbor-technology.com) The near-term question is not whether COM Express still works, but which new designs have already outgrown it. PICMG’s latest spec update and vendors’ new module launches show where the industry expects that answer to land. (picmg.org; arbor-technology.com)
