I have a couple of older HP corporate desktops ( HP 800 SFF Gen 1 desktops) that have an option in the BIOS to enable RAID, which I'm going to assume is only RAID1 given that there are only 3 SATA connectors on the motherboard.
In the past, I've had good luck with Intel motherboard RAID1 (on a Supermicro Xeon motherboard) but that was 12 years ago*.
The nice thing about motherboard RAID is that I don't have to learn anything new. To Windows, it's just a (single) hard drive. While it's on my wishlist to learn Linux and mess around with things such as unRAID, I don't want to experience a problem and not know what to do.
I'm not after high-performance. Just reliability since I plan to use refurbished 20TB drives from the usual sources that this sub recommends.
This is a home situation. I'm the only user.
Would you use motherboard RAID1 in 2024? What are the downsides?
(*) That Supermicro motherboard is actually still in use, 12 years straight, Windows Server 2012 R2, 3 separate RAID1 arrays of 256GB SSDs.