As stated, support for that one is not guaranteed, you need to first figure, out if your motherboard configuration supports lane bifucartion, otherwise it won't

As stated, support for that one is not guaranteed, you need to first figure, out if your motherboard configuration supports lane bifucartion, otherwise it won't work, or only one of the installed keys. Cards with PLX switches are are way to fix this if you cant upgrade your whole hardware, but the price point is a multiple of simple bifurcation cards, since you have to integrate a whole PCI switch on-card. The architecture diagrams here are quite helpful: https://www.qnap.com/en-us/product/qm2-m.2ssd https://www.qnap.com/en-us/product/qm2-m.2ssd