The following is taken directly from Box:
For purposes of transparency, there are two, separate issues at play:
- Support of Box Drive on devices running macOS 11 (Big Sur)
- Support of Box Drive on devices with Apple's New M1 Chip
From a user experience perspective, both issues will result in the same error: "Box Drive's system extension failed to load"
Currently, for customers running Big Sur (a supported OS) and not on a device running Apple's new M1 chip, we recommend enabling the system extension and rebooting as advised in the error message.
For customers on Apple’s new Silicon M1 chip, we are unfortunately unable to provide a similar workaround and do not, at present, support the devices on Box Drive. That said, our Engineering team is actively working to add support for the M1 chip on Box Drive. A Beta is planned in early 2021 for our Enterprise customers. Meanwhile, customers on these devices are encouraged to leverage our web-based application (https://app.box.com).
While we recognize this isn't the greatest news for some, we did want to provide some transparency and clarification. We have also added both of these issues to our Known Product Issues article.
UNH has requested participation in the M1 chip Beta when it is available.