Generic 7-Port USB Hub with ON/OFF Switch, Black (7 Port USB Hub) Features Connects up to 3 USB devices Up to 5Gbps data transfer rate Compliant with USB 3.0 Specification 1.0 Provide three USB 3.0 Ports, one SD Card Slot, and one microSD Card Slot Hot-swapping feature allows you to connect/disconnect devices without powering down the system No device drivers required for Hub installation LED to indicate Hub power Connectors: Top Side 3 x USB 3.0 type A female 1 x slot SD 1 x slot micro SD Connectors Bottom Side: 1 x USB 3.0 type A male 1 x DC jack Data Transfer Rates SuperSpeed 5Gbps (Gigabits) High Speed 480Mbps (Megabits) Full Speed 12Mbps (Megabits) Low Speed 1.5Mbps (Megabits) Memory Card Reader Slot One (Secure Digital): SD, SD Pro, SD High Capacity (SDHC), SD Ultra, SDHC Ultra, SDXC, SDXC Ultra, MMC-I, MMC-II, MMC 4.0, Mini SD, Mini SDHC, MMCmobile, RS-MMC, RS-MMC 4.0 Slot One (micro Secure Digital): MicroSD, Micro SDHC, Micro SDHC Ultra, T-Flash, MMCmicro Physical Characteristics Mounting diameter: 60 mm Mounting depth: 30 mm Cable length: USB 3.0 115 cm Cable length: DC Power 12 cm Electrical Characteristics Input: AC 100 ~ 240 V / 50 ~ 60 Hz / 0.5 A Output: 5V / 4A Barrel Jack Ground outside, plus inside (standard polarity) Barrel Jack Dimensions: inside:  ca. 1.35 mm; outside:  ca. 3.5 mm; length: ca. 9.5 mm