# About Cross Chain

**URL:** <https://community.fireblocks.com/t/about-cross-chain/597>\
**Category:** Developer Discussion\
**Created:** [January 11, 2024, 7:30am UTC](https://community.fireblocks.com/t/about-cross-chain/597 "2024-01-11T07:30:27Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![kkk](https://avatars.discourse-cdn.com/v4/letter/k/67e7ee/32.png) [@kkk](https://community.fireblocks.com/u/kkk)\
**Post date:** [January 11, 2024, 7:30am UTC](https://community.fireblocks.com/t/about-cross-chain/597/1 "2024-01-11T07:30:27Z")

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Does Fireblocks support cross-chain?

I want to make sure that the withdrawal will be successful if the USDT from the source and the USDT to the destination are different.

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**Author:** ![SlavaSereb](https://avatars.discourse-cdn.com/v4/letter/s/dfb087/32.png) [@SlavaSereb](https://community.fireblocks.com/u/SlavaSereb)\
**Post date:** [January 16, 2024, 5:43pm UTC](https://community.fireblocks.com/t/about-cross-chain/597/2 "2024-01-16T17:43:23Z")

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Hey @kkk !

Can you please elaborate on the question here? I just want to make sure I understand the use case properly before providing any information 🙏🏻

Thank!

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**Author:** ![kkk](https://avatars.discourse-cdn.com/v4/letter/k/67e7ee/32.png) [@kkk](https://community.fireblocks.com/u/kkk)\
**Post date:** [January 17, 2024, 2:16am UTC](https://community.fireblocks.com/t/about-cross-chain/597/3 "2024-01-17T02:16:53Z")

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@SlavaSereb  
To estimate the USDT transfer fee (using “Estimate the required fee for an asset”),  
I wanted to set “USDT” to “assetID”, but an error occurs.  
By using “List all asset types supported by Fireblocks” I learned that “assetID” cannot be set to “USDT” and that “USDT” has multiple networks(“USDT\_ERC20”, “USDT\_OMNI”, “USDT\_POLYGON”, etc.).  
Therefore, when creating a “TRANSFER” transaction (using “Create a new transaction”), use “ONE\_TIME\_ADDRESS” for the destination address,  
I would like to send “USDT” without being aware of the type of “USDT” network . Is it possible?  
(e.g. automatic bridging of networks)

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**Author:** ![SlavaSereb](https://avatars.discourse-cdn.com/v4/letter/s/dfb087/32.png) [@SlavaSereb](https://community.fireblocks.com/u/SlavaSereb)\
**Post date:** [January 20, 2024, 8:43pm UTC](https://community.fireblocks.com/t/about-cross-chain/597/4 "2024-01-20T20:43:07Z")

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That won’t be possible in Fireblocks @kkk.

You have to specify an explicit asset ID (USDT on a specific network) when creating transactions.