Very similarly spec’d Dell Optiplex micros also available and work great 🤙
Discussion
Are they too capable of two internal SSD's?
Yes, one SATA port and one M.2 internally. Ideally you’d want matching (like two M.2 drives) but it’ll still work fine in btrfs/RAID
Ah actually the higher-end Optiplex Micros (5000 series) do have two M.2 slots for SSDs and still have one SATA, though they’re a bit more expensive
Actually ideally you don't want the drive types to match. Two different drive brands and interface types are less likely to experience a random failure simultaneously.