LaCie d2 Thunderbolt 3 6 TB
This external desktop hard drive has never disappointed me a day to this day. It is extremely fast and yet runs mostly inaudibly quiet.
As soon as I need more disk space, I'll buy another LaCie d2 Thunderbolt 3, but then with 10TB. Because you can connect up to six of them in a daisy-chain, no additional connection to the MacBook or USB hub is needed. The slim vertical design saves installation space, because such hard disks must not be stacked.
A clear Recommendation to buy!
This model looks great, has excellent workmanship and is usually only audible after switching on/ waking up from sleep mode and when logging off. In addition, the LaCie d2's power adapter also powers my MacBook Air and gently charges its batteries (5 volts, 3 amps, 15 watts).
The fact that it unfortunately continues to charge the batteries even when they should better not be charged any further is not LaCie's fault, but a design fault of Apple.
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