
The subject line says it all. If you have a newer imac with Catalina/APFS and want to create a bootable backup volume on a non-SSD drive with Carbon Copy Cloner. . I have an internal 2TB SSD drive and just need an external drive for extra storage for the files that don't see much if anything and a bootable backup clone in case something happens. So I don't need an external SSD drive, and given the cost of a 4TB SSD, the Novus 4TB drive was a very affordable option and met my needs.

18 TB External HDD Western Digital WD Elements Desktop, USB 3.0, black
95 Review

8TB Seagate Backup Plus Hub Desktop Hard Drive with Data Recovery Services
56 Review

Shock-Resistant Transcend StoreJet 25M3 USB 3.1 Slim Portable Hard Drive with 500GB Capacity
99 Review

π Seagate Backup Plus Slim STHN2000400 2TB Portable Hard Drive - Black: Your Reliable External Storage Solution
93 Review

SAMSUNG T7 Touch Portable SSD π½ 2TB: High-speed, Secure & Compact Solid State Drive!
17 Review

π StarTech.com 3.5in Silver Aluminum USB 3.0 External SATA III SSD / HDD Enclosure with UASP - Portable USB 3 3.5" SATA Hard Drive Housing (S3510SMU33)
10 Review

SAMSUNG T7 Portable SSD 1TB: Fast and Reliable USB 3.2 External Solid State Drive in Gray
13 Review

Samsung T5 Portable SSD MU PA500B
88 Review