> For the complete documentation index, see [llms.txt](https://support.onlogic.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.onlogic.com/product-documentation/industrial-products/helix-hx500-series.md).

# HX500 & HX600 Series

- [HX520 / K520](https://support.onlogic.com/product-documentation/industrial-products/helix-hx500-series/hx520-k520.md)
- [HX520 / K520 MCU Manual](https://support.onlogic.com/product-documentation/industrial-products/helix-hx500-series/hx520-k520/hx520-k520-mcu-manual.md): Helix 520 / Karbon 520 Series Industrial Computer MCU Manual
- [HX520 / K520 BIOS Manual](https://support.onlogic.com/product-documentation/industrial-products/helix-hx500-series/hx520-k520/hx520-k520-bios-manual.md)
- [HX511](https://support.onlogic.com/product-documentation/industrial-products/helix-hx500-series/hx511.md)
- [HX511 BIOS Manual](https://support.onlogic.com/product-documentation/industrial-products/helix-hx500-series/hx511/hx511-bios-manual.md)
- [HX500 / HX600 / HX610](https://support.onlogic.com/product-documentation/industrial-products/helix-hx500-series/hx500-hx600-hx610.md)
- [HX500 / HX600 BIOS Manual](https://support.onlogic.com/product-documentation/industrial-products/helix-hx500-series/hx500-hx600-hx610/hx500-hx600-bios-manual.md)