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Time Capsule was Apple’s discontinued line of network backup products. This is how you could use one on a modern network.
Apple Time Capsules
Apple Time Capsules
In 2008 Apple introduced a product called Time Capsule, which combined a wireless AirPort Base Station and an internal hard drive along with the macOS Time Machine backup software.
Time Capsule acted as a Network Attached Storage (NAS) device and allowed users to both manually back up their data by using a Time Capsule as a NAS volume, as well as by using the Time Machine app to automate backups.
How to use Apple’s Time Capsule for backups on a modern wireless network
How to use Apple’s Time Capsule for backups on a modern wireless network
