Optimized for X13 WIO (W series) motherboards, support MB size up to 12.3" x 13.4", 10 x 2.5" hot-swap SAS3/SATA drive bay, 10-port 1U SAS3 12Gbps Hybrid backplane, support up to 10x 2.5-inch NVMe storage devices, 4 of them are SAS3/SATA3 drives compatible - More Info