> For the complete documentation index, see [llms.txt](https://knowledge.illumina.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://knowledge.illumina.com/microarray/general/microarray-general-faq-list/000003871.md).

# Which Infinium BeadChip types can be scanned using the NextSeq 550?

The NextSeq 550 offers both sequencing and array-scanning functionality, however, it supports only a limited range of BeadChip types. By comparison, the iScan supports scanning across the complete Infinium array product portfolio.

**Table 1.** BeadChips supported by the NextSeq 550 system

| BeadChip Type                                                               | Scan time per BeadChip | No. of samples | Scan time per sample |
| --------------------------------------------------------------------------- | ---------------------- | -------------- | -------------------- |
| Infinium MethylationEPIC                                                    | 40 minutes             | 8              | 5 minutes            |
| Infinium CytoSNP-850K                                                       | 40 minutes             | 8              | 5 minutes            |
| Infinium HumanCytoSNP-12\*                                                  | 40 minutes             | 12             | 3.3 minutes          |
| Infinium HumanKaryomap-12\*                                                 | 40 minutes             | 12             | 3.3 minutes          |
| [Karyomap v2](https://www.vitrolife.com/products/genomics/karyomap-v2/)\*\* | 40 minutes             | 8              | 5 minutes            |

\**Obsolesced*

*\*\* Sold and supported by Vitrolife*

For additional information, refer to the following resources:

* NextSeq 550
  * [System Specifications](https://www.illumina.com/systems/sequencing-platforms/nextseq/specifications.html)
  * [Specification Sheet](https://www.illumina.com/content/dam/illumina/gcs/assembled-assets/marketing-literature/nextseq-550-system-spec-sheet-m-gl-01298/nextseq-550-system-spec-sheet-m-gl-01298.pdf)
  * [System Guide](https://support.illumina.com/sequencing/sequencing_instruments/nextseq-550/documentation.html)
* iScan
  * [System Specifications](https://www.illumina.com/systems/array-scanners/iscan/specifications.html)
  * [Specification Sheet](https://www.illumina.com/content/dam/illumina-marketing/documents/products/datasheets/iscan-data-sheet-970-2011-004.pdf)
  * [System Guide](https://support.illumina.com/downloads/iscan-system-product-documentation.html)
* Illumina Knowledge
  * [How to configure the NextSeq 550 for BeadArray Scanning](/microarray/general/microarray-general-troubleshooting-list/000005236.md)

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| *For any feedback or questions regarding this article (Illumina Knowledge Article #3871), contact Illumina Technical Support* [*techsupport@illumina.com*](mailto:techsupport@illumina.com?subject=Question%2FFeedback%20Regarding%20Illumina%20Knowledge%20Article%20#000005236%20-%20Microarray%20\&body=Dear%20Illumina%20Technical%20Support,%0D%0A%0D%0A)*.* |


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