Bus type: PCI-E 4X, conpatible with PCI-e x4, x8, x16 slot. 10Gbps USB 3.1 Type-C external port. Transfer Rate: 10,000/5000/480/12/1.5Mbps. USB Rapid charging port (5V 2.4A) supports USB Battery charging Specifaction 1.2. 15 Pin SATA Power Supply Port.