# Plate layouts for Ampliseq Combinatorial Dual (CD) Indexes Sets A, B, C and D

The following table shows the plate layout for Ampliseq CD Indexes Sets A, B, C and D, which are designed for dual indexing. The catalog numbers for these index kits are 20019105 (Set A), 20019106 (Set B), 20019107 (Set C), and 20019167 (Set D).

**AmpliSeq CD Indexes Set A for Illumina**\
![](https://761066130-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FGM9W2DuBTgEXv1ClCm8H%2Fuploads%2Fgit-blob-d8c7186ef25cde0bac40c9e3a09a59cef7b768b7%2Fimage1.jpg?alt=media)

**AmpliSeq CD Indexes Set B for Illumina**\
![](https://761066130-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FGM9W2DuBTgEXv1ClCm8H%2Fuploads%2Fgit-blob-df096059050e3abea0da54ba6d31a4cd27055b40%2Fimage2.png?alt=media\&token=8b2c0dae-cf01-4502-baed-2579ddc15989)

**AmpliSeq CD Indexes Set C for Illumina**\
![](https://761066130-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FGM9W2DuBTgEXv1ClCm8H%2Fuploads%2Fgit-blob-95e0cc4e356ef8462a9bbddc3c05112f1f3b1390%2Fimage3.png?alt=media)

**AmpliSeq CD Indexes Set D for Illumina**\
![](https://761066130-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FGM9W2DuBTgEXv1ClCm8H%2Fuploads%2Fgit-blob-eb70b2c42892c263528841b4f63c821e9d48ff15%2Fimage4.png?alt=media)

The Index Adapters Pooling Guide, linked [here](https://support-docs.illumina.com/SHARE/IndexAdaptersPooling/Content/SHARE/FrontPages/IndexAdapterPooling.htm), contains this table along with recommended index combinations for low-plexity library pooling.

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| _For any feedback or questions regarding this article (Illumina Knowledge Article #2333), contact Illumina Technical Support_ [_techsupport@illumina.com_](mailto:techsupport@illumina.com?subject=Question%2FFeedback%20Regarding%20Illumina%20Knowledge%20Article%20#000002333%20-%20Library%20Preparation%20\&body=Dear%20Illumina%20Technical%20Support,%0D%0A%0D%0A)_._ |
