# Freeze thaws and kit stability for TruSight Oncology 500 automation library preparation kits

**How many freeze thaws are supported?**\
Illumina has validated up to four freeze thaw cycles; this is the same as for TruSight Oncology 500 manual library preparation kits.

**What is the guaranteed shelf life of automation library preparation kits?**\
Illumina guarantees at least 3 months of shelf life from the date of shipment; this is the same as for TruSight Oncology 500 manual library preparation kits.

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| *For any feedback or questions regarding this article (Illumina Knowledge Article #3794), contact Illumina Technical Support* [*techsupport@illumina.com*](mailto:techsupport@illumina.com?subject=Question%2FFeedback%20Regarding%20Illumina%20Knowledge%20Article%20#000003794%20-%20Library%20Preparation%20\&body=Dear%20Illumina%20Technical%20Support,%0D%0A%0D%0A)*.* |


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