Feature: 1. [DC Power Chip] No disk drop, no speed reduction, no blocking, high power DC power chip to ensure stable operation of M2.NVME SSD. In order to enhance the stability of operation, a heat sink is added. 2. [4 Disk Expansion Card] PCIE X16 4 disk expansion card, 4 x 32Gbps full speed signal, simultaneous expansion, software RAID can be realized under win10, 4 disks have good consistency and stable RAID. 3. [LED Indicator] 4 disks correspond to 4 LED indicators, the SSD access LED will light up, the SSD read and write LED will flash, M.2 to SATA3.0 expansion card, upward PCIE 3.0 X2 16Gbps, downstream SATA3.0 6Gbps x 5. 4. [Sturdy Structure] The motherboard supports PCIE split or PCIE RAID function, supports PCIE 3.0, 4.0 transmission protocol, 4 disk firm state drive array card, sturdy structure, thicker PCB, stable PCIEX16 interface, and protects your important data. 5. [JMB585 Chip] adopts the latest JMB585 chip solution, high speed transmission and stable performance, dedicated to meeting the user's demand for massive data space, the corresponding interface has a SATA device, the light is on, and it flashes when there is data reading and writing. Specification: Item Type: PCIE X16 Expansion Card Material: PCB Transmission Speed: 4 x 32Gbps Model: PH44 Support Hard Disk: M.2 NVME Protocol SSD/M.2 PCIE Equipment Model: PH56 Support Hard Disk: Support SATA Protocol Support: 5 Sata Devices, Thunder Extension System: For OS X, for Linux, for Windows Speed: Sata3 (6G), the total bandwidth of the bottom layer is 16G. Package List: 1 x Riser Card1 x Screwdriver1 x Large Screw4 x Small Screws4 x Studs