| Chemistry | V1 | V2 |
| Indices provided | 8 | 8 |
| Number of indices used per sample | 2 | 1 |
| Maximum sample number that can be indexed | 4 | 8 |
| Can additional indices be ordered from third-party vendors? | Yes | Yes |
If you want to sequence more than 8 samples using V2 chemistry, refer to the V2 Additional Indices Guide.