https://smile.amazon.com/gp/product/B074HC93RX/ref=ox_sc_act_title_1?tag=slicinc-20&ascsubtag=e4185b14b50311e89d76deea9ecd979f0INT&smid=ATVPDKIKX0DER&sa-no-redirect=1&th=1
x399-a is 269 though.
It's your DP cable. Had the same issue on a different monitor. Many manufactures claim they are spec but many fall short including most of the thrown in cables in the monitors I bought. https://www.amazon.com/dp/B0098HW0EA/ref=cm_sw_r_cp_api_afawzbMVDBVTP
1. Yes there are different hardware revisions of the card and bios. You have login to download the most up to date bios and check to see what it supports.
2. JBOD can be handled OS side as well as card side. I believe FreeNAS does this.
Sooo, how long does it take for NCASE to get back to you? My order errored and PayPal was charged. I sent an inquiry and it's been over a week (More than 5 business days) and have not heard anything. Getting frustrated.