1. One chip supports two slots M.2 mobile hard disk adapter card, dual-disk design provides multiple interfaces when your power supply is unstable, no need to use it under stable conditions 2. Dual-protocol NVMe/SATAUSB3.1Gen2 theoretical reading and writing 1000MB/s brings you a comfortable experience! Product Description: Model: PH82-581 Support capacity: 4TB Transmission interface: NVME/SATA Transmission speed: Type-c USB3.1 Gen2 10Gbps size: 5 x 4.5cm Material: ABS colour: black Package Contents: 1 x HDD Riser Card 1 x Screwdriver 2 x Locking Screw 2 x Moving Stud 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. HDD Riser Card Hard disk adapter SSD Riser Card