Fanless design
Passive cooling reduces moving parts and dust ingress, but requires proper heat dissipation and installation.
Communication ports
The number of LAN, COM, USB and other interfaces should be determined according to the PLC, cameras, scanners, readers and existing devices.
Storage and memory
RAM and SSD should be selected according to SCADA, vision, databases and other applications, not only the operating system.
Maintenance
Availability of a spare unit, identical configuration and easy drive replacement can be more important than maximum processor performance.
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