Seller on ebay has more than 10 (60 sold) 22110 1.92tb drives. It hits a bit into “too good to be true” territory, so keep that in mind as far as health. I bought one and will let you know what I find when delivered.
Depends on use case. If you’re moving data once a day off cache, you don’t probably need 1.92tb.
If your internet connection can utilize nvme speed, then yes. But I suspect a regular (cheaper) ssd can work just as well and has higher value. This drive, depending on what write stats it has, may be overkill for most uses of Unraid cache.
=== START OF SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
SMART/Health Information (NVMe Log 0x02)
Critical Warning: 0x00
Temperature: 31 Celsius
Available Spare: 100%
Available Spare Threshold: 10%
Percentage Used: 0%
Data Units Read: 3,750,909 [1.92 TB]
Data Units Written: 68,053 [34.8 GB]
Host Read Commands: 29,311,638
Host Write Commands: 355,079
Controller Busy Time: 114
Power Cycles: 29
Power On Hours: 171
Unsafe Shutdowns: 27
Media and Data Integrity Errors: 0
Error Information Log Entries: 0
Warning Comp. Temperature Time: 0
Critical Comp. Temperature Time: 0
Temperature Sensor 1: 31 Celsius
Temperature Sensor 2: 41 Celsius