Before purchasing I read some reviews about CWWK boards and had some concerns about the BIOS. My board arrived with a fairly recent BIOS version (American Megatrends International, LLC. Version: 5.27 04/25/2025). It's been working for a week on a home NAS with 5x 8Tb HD + 1 M2.NVMe 512Mb. I'm still trying to optimize some settings in the BIOS but so far no problems, it satisfies my needs.