# How to select the optimal blockchain fee

The speed of the transaction processing depends on the blockchain fee selected when creating a payout: the lower the fee, the longer the transaction processing time.

The following fee modes are available:

* **Low**: The economy mode when speed doesn’t matter.
* **Medium**: The optimal processing speed for a reasonable blockchain fee.
* **High**: The priority transaction processing via high blockchain fees.
* **Custom**: The customized fee value: you can specify your own blockchain fee value. Mind that your custom value can’t be two times lower than the *Low* value and three times higher than the *High* value.

{% hint style="danger" %}
The blockchain fee can vary, therefore we suggest that you refer to the links containing blockchain gas[^1] fees in the table below for more precise information about blockchain fee values.
{% endhint %}

| Blockchain      | Links for reference               |
| --------------- | --------------------------------- |
| BNB Smart Chain | <https://bscscan.com/gastracker>  |
| Ethereum        | <https://etherscan.io/gastracker> |

[^1]: Commission charged for processing token transactions in the Ethereum blockchain.