The uplink port data transfer rate is the PCle Gen 3X2 specification. Downlink ports can connect to &AHCI storage devices, such as HDDS and SSDS. It provides five ports, each of which can transfer data up to 6Gb/s Support port multiplier, use JMB575 to support up to 75 x devices; SSD TRIM is supported and data can be sent and received from the host in AHC1 mode and traditional IDE mode. JMB585 is widely used in mobile, server, IPC, consumer electronic devices, storage devices and NVR/DVR PC systems; Dual NVME PCI-EX8 split card To 10-port adapter Support pCI-E 3.0,PCI-E4.0 standard transmission speed Name: Expansion Card 10 Port Project:Pci-E X8 To X16 Type:Pci-E Card Type:Pci-E Expansion Card Size:14.3 x 12 x 6.8CM Color:Black Material:PC+Plastic Package Contents: 1 * Expansion Card Only the above package content, other products are not included. Note: Light reflection 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.