# Plate layouts for IDT for Illumina DNA/RNA UD Index kits, Sets A, B, C, and D

The following tables depict the plate layouts for IDT for Illumina Nextera DNA UD Indexes, IDT for Illumina DNA/RNA UD Indexes, and IDT for Illumina PCR UD Indexes, which are designed for dual-indexing.

**IDT for Illumina UD Indexes Plate A/Set 1**\
![](https://761066130-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FGM9W2DuBTgEXv1ClCm8H%2Fuploads%2Fgit-blob-2e4b2147975ccfba3a810bbc86f508df7bda978d%2Fimage1.png?alt=media)

**IDT for Illumina UD Indexes Plate B/Set 2**\
![](https://761066130-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FGM9W2DuBTgEXv1ClCm8H%2Fuploads%2Fgit-blob-395e136d620c5cbdfa092d99a632f201b4acbefb%2Fimage2.png?alt=media\&token=dabed142-4ddb-40e7-ba38-6f41f9f464d4)

**IDT for Illumina UD Indexes Plate C/Set 3**\
IDT for Illumina DNA/RNA UD Indexes and IDT for Illumina PCR UD Indexes utilize the same indexes as IDT for Illumina Nextera DNA UD Indexes except for where a v2 index is indicated.\
![](https://761066130-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FGM9W2DuBTgEXv1ClCm8H%2Fuploads%2Fgit-blob-af97baf15ecece7415d21db88339a664e8f5f8e0%2Fimage3.png?alt=media)

**IDT for Illumina UD Indexes Plate D/Set 4**\
IDT for Illumina DNA/RNA UD Indexes and IDT for Illumina PCR UD Indexes utilize the same indexes as IDT for Illumina Nextera DNA UD Indexes except for where a v2 index is indicated.\
![](https://761066130-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FGM9W2DuBTgEXv1ClCm8H%2Fuploads%2Fgit-blob-deecaec30c56eebbf93e2e4c4e2a6fee9cc84e10%2Fimage4.png?alt=media)

The Index Adapters Pooling Guide, linked [here](https://support.illumina.com/downloads/index-adapters-pooling-guide-1000000041074.html), contains these tables 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 #2338), contact Illumina Technical Support* [*techsupport@illumina.com*](mailto:techsupport@illumina.com?subject=Question%2FFeedback%20Regarding%20Illumina%20Knowledge%20Article%20#000002338%20-%20Library%20Preparation%20\&body=Dear%20Illumina%20Technical%20Support,%0D%0A%0D%0A)*.* |