Along with the redesigned iMac, Apple introduced a new Magic Keyboard with Touch ID for fingerprint authentication, which is useful for quickly logging into macOS or confirming an Apple Pay purchase online.
As now reported, the Magic Keyboard with Touch ID is fully compatible with all M1 Macs, including the new iMac, 13-inch MacBook Pro, MacBook Air, and Mac mini. When used with Intel-based Macs or other Bluetooth devices, the Magic Keyboard will continue to work, with the exception of Touch ID. While the new Magic Keyboard is compatible with all M1 Macs, it will only work with the new iMac, at least for now. available be.

Magic Keyboard with Touch ID: Only available with new iMac for now
The new iMac can be configured with one of three different Magic Keyboards, including a standard version with Touch ID, a standard version without Touch ID, and an enhanced version with Touch ID and a numeric keypad. Apple has offered some previously iMac-exclusive accessories for purchase in the past. For example, when the iMac Pro was launched in December 2017, the Space Gray versions of the Magic Keyboard, Magic Mouse, and Magic Trackpad were only available with the iMac Pro, but were offered separately in March 2018. The new iMac with the new Magic Keyboard will be available from April 30th pre-ordered - delivery is scheduled to begin in the second half of May. (Image: Apple)