What is Reddit's opinion of FIDECO USB 3.0 to SATA Hard Drive Docking Station, Dual-Bay Hard Drive Dock with TF & SD Card Slots for 2.5/3.5 Inch SATA HDD SSD, Support Offline Clone?

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Perhaps try something like this to clone the drive. Not sure if this fits with your workflow but it might https://www.amazon.co.uk/dp/B07D8S7RN7/ref=cm_sw_r_cp_apa_glt_fabc_HB9ZYHMM2VAKGGVCKJDM?_encoding=UTF8&psc=1

Some good advice here, I will throw my 2 pence in to muddy the waters.

External USB drives can be cheap and a good use for backups, eg a USB 3.0 HD docking station with 3 x whatever size drives you want. For example only but not endorsed - https://www.amazon.co.uk/Docking-Station-FIDECO-Offline-Function/dp/B07D8S7RN7 then You mark each drive as A, B or C and rotate them in usage. This unit can duplicate at a press of a button. If you only need 8TB drive then get 3 X 8TB or 3 X16TB its your choice. But I agree with previous comments anything can die at anytime. So buy 2 units (use 1 for 1 month and then swap). Could also buy different units just incase they had an inherent issue. You could always buy 4 or more HD's to rotate. If the data is that important then once a week/month you take a backup and store it offsite in a fireproof safe or in the bank ! Raid is brilliant at protecting against HD failure but you also need to take into account the Raid unit failing so will need 2 units because its not very good if a Raid unit fails and yes the HD's have your hopefully uncorrupted data still but if you cant get an identical replacement version with identical firmware then you wont be able to access the data. But HD's are the most likely first point of failure which Raid can usually correct for, so you only need to cater for the Raid unit itself which an identical unit used as backup can cater for. It all depends on how valuable your data truly is, if its business data then how valuable is the data if its permanently lost, spending on 2 or 3 NAS 's with raided HD's might not seem so expensive. If you trust the cloud - lol thats a big step then you can use that. me personally only trust myself with my data and not some MS or Google or Apple that all want to spy on your data !

How many bays drives you looking for it to support? I've seen some with 4 and 6, do be aware that this would saturate most USB connections.

Personlly, I use this, it has a Clone feature (Though I've not used that):

https://www.amazon.co.uk/gp/product/B07D8S7RN7/