The mainboard supports PCI-E split or PCI-E RAID. Pci-e 3.0 and 4.0 transport protocols are supported Using the latest JMB585 chip solution, high-speed transmission and stable performance, committed to meet the 's for data space 4 disk SSD array card solid structure, thickened PCB, PCIEX16 interface to care for your important data Supported disk 4 In soft RAID 10, the soft RAID4 disks are and stable. 4 disks correspond to 4 LED indicators, The LED will when the SSD is connected to it. SSD read and write LED can blink Supported hard disks: M. 2 NVME SSDS /M. 2 PCI-E devices Transmission speed: 4*32Gbps Colour:black Material:PCB Package Contents: 1 x 20-Port Adapter Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store