I’ve found a product that I may want to purchase since I have spare M.2 SATA SSDs lying around:

I’m hoping to find out if something better exists out on the market. Priorities:

  1. Takes more than one M.2 SATA SSD
  2. Does not require additional data (SATA) cables to be connected to the motherboard
  3. Supports TRIM
  4. Has Spanning/RAID-0 mode (multiple SSDs seen as one device)
  5. Bandwidth of both drives combined

The Startech product mentioned before supports 1 to 5, but not all at once; RAID mode does not pass TRIM along to the underlying SSDs. So it seems that 3 and 4 are mutually exclusive there. The Startech 25S22M2NGFFR does support TRIM, but its bandwidth is gimped by the SATA interface, and it does not support TRIM for RAID-0 anyhow; spanning mode is counted as “RAID” and StarTech says it does not support TRIM except in JBOD mode which is not what I want.

  • Out of curiosity, why do you prefer hardware RAID over software RAID? – JMY1000 Dec 4 '18 at 18:41
  • Also, it may actually be cheaper to get an older RAID card and use standard SATA to M.2 adapters. Would you be okay with that? – JMY1000 Dec 4 '18 at 18:46
  • Hardware is preferable to software. The computers I'm putting them in are old enough that they don't have M.2 support and they have pretty anemic CPUs. – Kevin Li Dec 4 '18 at 18:46
  • My mini-ITX builds have only one PCIe slot. – Kevin Li Dec 4 '18 at 18:49
  • Gotcha. Out of curiosity, why are you putting an SSD RAID0 in an old computer? Also, I meant this sort of M.2 to SATA adapter, which wouldn't take any additional PCI-e slots. – JMY1000 Dec 4 '18 at 18:52

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