For Non USB3.0 Motherboard 3.5" Internal USB 3.0 All-in-one Card Reader: Complies with Universal Serial Bus Specification 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. Support 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 4PIN socket provides power to each USB3.0 connector up to 900mA to ensure huge current consumption for USB devices working properly Input: PCI-E connector; output: 2 Ports USB3.0 Hub + 1 USB 3.0 20 Pins Connector Built-in over current protection protects devices that work effectively Support USB 3.0 to Sata interface USB 3.0 with high speed up to 5.0Gb/s backward compatible with USB 2.0/1.1 With Internal Connector for USB3.0 Front IO device if USB 3.0 Motherboard is absent With 2 x Hot-swappable USB 3.0 Port Notes: To ensure USB 3.0 transfer speed highest quality USB 3.0 cables and devices are required