Same setup here with a Supermicro Denverton board except in an iStarUSA chassis that I got brand new: https://istarusa.com/product/product-detail/?brand=istarusa&...

Though it looks like their SFF-8087 miniSAS chassis are EOL and soon replaced with SFF-8643 HD-miniSAS equivalents: https://istarusa.com/product/product-list/?brand=istarusa&se...