1. PCI-EX4 Adapter Card, PCI-EX4 To Dual-Port SFF-8643 Expansion Card 2. High-Speed Computing Core Takes You Into The High-Speed Era! High Compatibility, There Is No Obstacle To Opening The Door To High Speed! 3. Strengthen Heat Dissipation, Lock In Low Temperature, And Achieve Organ Heat Dissipation, Instantly Taking Away Core Heat. 4. Sff-8643 Dual Port, Needs To Be Used With U2 Cable 5. Only Supports Nvme Interface Ssd 1. Product Name: SFF-8643 Expansion Card 2. Main Control: ASM2812 3. Interface Specifications: SFF-8643*2 4. Interface Rate: 32Gbps 5. Bus Specification: PCI-EX4 (Compatible With X8X16) Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Colour:As Shown Material:PCB Package Contents: 1 x Hard Drive Expansion Adapter Card 1 x 2U Baffle 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.