The PCi-e to SATA adapter of this product has 4 SATA3.0 interfaces and a rear four-port design. The wiring is more convenient and the chassis can be used in all sizes. A large heat sink is added on the surface of the adapter. The heat dissipation effect is better. This product is equipped with 4U, 2U dual fixing brackets, which can support large and small cases. Adopting heavy gold technology to thicken the gold-plated gold fingers, which can be easily instal in the PCI-EXPRESS slot of the chassis, with better contact, facilitating data transmission, and effectively reducing the packet loss rate. The tail is flush design, the probability of ing the graphics fan is smaller. The four-layer circuit board is used with an isolation layer in the middle, which has stronger anti-interference ability. We support mode selection. You can choose AHCI, IDE, data disk, three modes Can choose freely. The rear SATA3.0 interface, we newly upgraded and expanded 4 rear SATA3.0 interfaces, which is more suitable for use in narrow spaces, and 2U can also be better fixed; the rear wiring will not cross the graphics . This product supports Windows XP/2003/Vista/Win7/Win8/Win10 (32/64 bit) operating system. At the same time, when the quality of the product brings inconvenience to your use, please contact us immediately and we will take measures seriously Solve your problem.