UNDERSTANDING SAS
SAS adaptors on boards typically come in two sizes.
The smaller SAS connector is a standard SATA connector.
The second type is “wide” SAS connector.
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Credit Adamantios CCL
This is the equivalent of 4 SATA ports.
Hard drives with a wide port are nearly all dual drive or more SSD boards.
You remove the drive or drive cage, leaving a larger than modern board with all the standard ICs, plus the SAS controller.
Often you also find 2 or 4 uPCIe or M2 sockets the drives we plugged into.
Such “enterprise” SSD boards also have an onboard raid controller furthering the IC population.
Thus, the older class is correct for these
Two things to remember with these disks. The cost, and are worth, a fortune.
Dual SSD SAS drives start at around $800 for 512 GB redundant. 8TB disks and higher can be 10s of thousands.
So resale is the best choice if you run a (free software) drive scan and have less than 10-20% cell failure.
AND, you can NOT remove every byte of data without damaging the drive. [goes for all solid state storage]
So encrypt the drive first then reformat on another machine. This will protect Your/their data from prying eyes.
Yes, you can usually remove non-soldered drives from the sockets and have the actual drives plus a hard drive board! :)