1. [High-speed and stable hard disk expansion] Adopts the latest JMB582 chip solution, with high transmission speed and stable performance, and is committed to meeting users' needs for massive data space. 2. [Wide range of hard disk expansion applications] Widely used in PC computers, servers, industrial computers, consumer electronic devices, storage devices, NVR/DVR systems, etc. 3. [Easy to use hard disk expansion] Driver-free, plug and play, equipped with two standard SATA interfaces, users only need to insert the card into the M.2 slot of the motherboard, and then connect the two SATA interfaces through the SATA cable to connect the SSD solid state drive or mechanical hard disk at the same time. 4. [Secure hard disk expansion] This product adopts super PCle3.0 total bandwidth, adds a heat sink to the chip, and has faster data transmission speed, bringing users and gamers faster, lower performance, and more stable storage devices.