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Data at Rest Encryption (D@RE) provides hardware-based, on-array, back-end encryption for Dell PowerMax and Dell VMAX All Flash systems. Back-end encryption protects your information from unauthorized access when hard drives are removed from the system. D@RE provides encryption on the backend using I/O modules that incorporate 256-bit AES-XTS data encryption. For detailed information about D@RE, see the following white paper: Dell PowerMax Data at Rest Encryption.