Withdraw for redemption
The protocol's asset redemption mechanism also consists of two modes: the stability phase and the adjustment phase.

Stability Mode
During the stability phase, users must hold a fixed ratio of USB and ETHx to redeem the corresponding ETH from the Vault. For example, if a user wishes to redeem a certain amount of ETHx, they need to pair it with the corresponding quantity of USB, and vice versa. The calculation formula is as follows:
The amount of ETH redeemed with the paired ( \Delta ETHx ) and ( \Delta USB ) is:
Adjustment Mode
When the protocol enters the adjustment phase, the user redemption rules change. If AAR rises above AARU, users can redeem ETHx alone. The redemption quantity calculation formula is as follows:
If AAR falls below AARS, users can redeem USB alone, and the quantity calculation formula is as follows:
In the extreme scenario where AAR falls below 100%, the USB redemption mechanism is as follows:
Excluding the two situations mentioned above, users still need to pair two assets together for redemption.
The redemption fee is 0.5%
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