
Siemens 6AG4040-0AA20-0NA0
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The Siemens SIMATIC MICROBOX PC 420 is an industrial micro PC designed for reliable automation and control tasks in demanding environments. As part of the SIMATIC Box PC range, this compact industrial computer offers stable performance and long-term operability for legacy industrial applications.
The system is equipped with a Celeron processor at 400 MHz, 256 MB SDRAM memory and a 512 MB CompactFlash storage. Windows XP Embedded is pre-installed, providing a proven platform for existing HMI, control and visualization software.
For flexible connectivity, the MICROBOX PC 420 features two integrated LAN ports (RJ45), DVI-I graphics output, a serial COM interface and four USB 2.0 ports. Up to three PC/104-Plus expansion slots allow easy integration of additional industrial I/O or communication modules.
Designed for industrial use, the device includes temperature monitoring, watchdog functionality and a 24 V DC industrial power supply. Although this product is obsolete and phased out, it remains suitable for maintenance, replacement and expansion of existing SIMATIC-based installations where compatibility and system continuity are essential.