Here's the comparison on the three points you asked about:
| Spec | MIC-712P-OX (Advantech) | ATC 3563-NX8C/NXA8CR (NEXCOM) |
|---|---|---|
| PoE port count | 6 (of 8 total GbE ports) | 8 (all GbE ports) |
| Total PoE budget | 150 W | 120 W |
| Max operating temp | 70 °C (–25 °C min) | 60 °C (–25 °C min) |
- MIC-712P-OX: 6x GbE PoE ports with a 150 W total PoE budget, out of 8 GbE ports total; its –25 °C to 70 °C operating range requires airflow and depends on power mode. advantech... +2advantech.com ↗“6x GbE PoE (150W budget)”advantech.com ↗“thermal.max_operating_temp_c=70 °C”advantech.com ↗“Requires airflow, Depends on power mode”
- ATC 3563-NX8C/NXA8CR: 8x GbE PoE+ ports (RJ45 or M12 connector variants) with a 120 W total PoE budget; its –25 °C to 60 °C operating range depends on power mode. nexcom.com +2nexcom.com ↗“8x GbE PoE+ (RJ45 or M12, 120W)”nexcom.com ↗“thermal.max_operating_temp_c=60 °C”nexcom.com ↗“Depends on power mode”
In short: the MIC-712P-OX offers fewer PoE ports but a larger per-system PoE budget and a higher rated maximum operating temperature, while the ATC 3563-NX8C/NXA8CR puts PoE on all eight of its GbE ports.