PCI-E X8 Double Disk Transfer Card NVME M.2 MKEY SSD RAID Array Expansion Adapter 1. Using high-quality PCB circuit board, gold-plated surface, good conductivity, strong wear resistance, anti-oxidation, high fire rating 2. Support PCI-E X8 and X16 motherboard slots 3. Support PCI-E 3.0, PCI-E 4.0 standard transmission speed 4. Support 2 X4 full-channel full-speed NVME SSDs and M.2 PCI-E interface devices 5. Adopt high-power DC chips to ensure stable operation of SSD and M.2 PCI-E devices 6. PCI-E X8 interface, using thickened immersion gold technology, better contact, more stable transmission speed 7. Compatible with 223022422260228022110 specifications 8. Support hard disk: M KEY hard disk 9. Transmission speed: 2 x 32Gbps 10. Dimensions: 14.3 x 12 cm 11. Net weight: about 52 grams 12. Packing: cowhide box packing packing list: -Riser card x 1 -Lock bezel screw x 2 -Mobile stud x 2 -Chassis screw x 1 -Lock plate screw x 2 -Full height bezel x 1 -Half height bezel x 1 -Screwdriver x 1