SD Card USB Reader: read USB flash drive, hard disk, SDHC, SDXC cards. Wireless Bridge: bridge an existing wireless network, create secure Wi-Fi network, and share with friends or families. Never pay for multiple network. Media Streamer: seamlessly stream your videos, photos, and music from sd cards and usb drives with your smartphones, tablets, and laptops via APP. Backup Storage: transfer files between sd cards ,usb drives and your devices(phone/tablet/camera) to free more space up for your devices. External Battery Packs: built-in 3000mAh power bank (5V/1A) can be an emergency battery backup.