# Are the IDT for Illumina RNA Index Anchors the same in every well of the plate?

The IDT for Illumina RNA Index Anchors plate (reference number 20040899) is included with the IDT for Illumina RNA UD Indexes, Ligation (96 Indexes, 96 Samples) (reference numbers 20040553 (Set A), 20040554 (Set B), 20040555 (Set C), 20040556 (Set D)) for use with Illumina Stranded Total RNA Prep and Illumina Stranded mRNA Prep Kits.

* Each well of the anchor plate is single-use and contains RNA Index Anchors.
* All anchor plate wells contain the same content and can be used in any order. (All the wells are the same.)
* The well positions used in the RNA Index Anchor plate do not need to match the index primer well positions used in the index plate.

\
\
\ <br>

|                                                                                                                                                                                                                                                                                                                                                                              |
| :--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------: |
| *For any feedback or questions regarding this article (Illumina Knowledge Article #5793), contact Illumina Technical Support* [*techsupport@illumina.com*](mailto:techsupport@illumina.com?subject=Question%2FFeedback%20Regarding%20Illumina%20Knowledge%20Article%20#000005793%20-%20Library%20Preparation%20\&body=Dear%20Illumina%20Technical%20Support,%0D%0A%0D%0A)*.* |


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://knowledge.illumina.com/library-preparation/rna-library-prep/library-preparation-rna-library-prep-faq-list/000005793.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.