For Non-USB 3.0 Motherboards-- 3.5" Internal USB 3.0 All-in-one Card Reader complies with USB Spec Ver. 3.0; Hot-Swappable with 6 Memory Card Slots compatible with up-to-date Memory Cards; Slot to Slot Read & Write Operation; Supports data transfer between memory slots (excepts between SD/MMC Slot and TF Slot and between MS/MS Duo Slot and M2 Slot). Built-in over-current protection can protect devices and host itself effectively. Supports USB 3.0 to SATA interface, USB 3.0 with high speed up to 5.0Gb/s, backward with USB 2.0/1.1; USB 3.0 PCIe Card: DC 4-pin socket provides power to each USB 3.0 connector up to 900mA to ensure huge current consumption for USB devices working properly; Input: PCI-E connector; output: 2 Ports USB 3.0 Hub + 1 USB 3.0 20-Pins Connector Built-in over current protection protects devices that work effectively.