I’ve recently updated my Areca ARC-8050 enclosure I reviewed here last year, and now use all 8 slots for RAID 5. This external enclosure is connected to my Imac. The hard drives are 4TB HDS 7200rpm drives. It took about 24 hours for it to initialize, not bad when you consider how much data it can hold. Here are the results using BlackMagicDesign Disk Speed Test app.

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Its been up and running, used daily for about a month with no problems. Here is a Disk Speed Test with 7 4TB Hitachi drives

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