The two Diamond Systems Jackson ER kits differ in cooling, while their operating temperature ranges are identical:
| Attribute | JAXER-ASY-ONX16-HSK | JAXER-ASY-ONX16-HSP |
|---|---|---|
| Cooling | Fan | Fanless |
| Operating temperature range | −25 °C to 80 °C | −25 °C to 80 °C |
So the HSK uses an active fan for heat dissipation, whereas the HSP is a fanless (passively cooled) design — useful if you need a fully sealed or silent system with no moving parts. Despite that difference, both support the same −25 °C to 80 °C operating environment.