I have a few of these s2600bp motherboards I have from a project I did, purchased new last year. Unpackaged to test and everything is good. They are a custom 6.8”x19.1” form factor, can use 12v to power on with custom cables for input power and power signal. Useful for custom applications. Intel has published PDFs and resources for these boards. Supports 165w or lower TDP LGA 3647 intel Xeon scalable CPUs Dual 10gb nics
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