1.[High-speed and Stable Hard Drive Expansion]Adopting the latest JMB582 chip solution for high-speed transmission and stable performance, the product is committed to meeting the user's demand for massive data space. 2.[Wide range of applications hard disk expansion]Widely used in PC computers, servers, industrial control machines, consumer electronics equipment, storage devices, NVR/DVR systems. 3.[Easy to use hard disk expansion]Driver-, plug and play, equipped with two standard SATA interfaces, users only need to insert the card into the motherboard's M.2 slot, and then through the SATA cable to connect two SATA interfaces at the same time the SSD SSD or mechanical hard disk can be. 4.[Security Hard Disk Expansion]This product adopts the super PCle3.0 total bandwidth, increased heat sinks on the chip, faster data transfer speeds, bringing users as well as gamers faster speeds, lower performance, high stability of the storage device.