Facing storage issues? Free up space on your tablet, smartphone, laptop and even SD card by investing in this WD external hard drive. It’s a portable 1TB wireless drive that let’s you connect to up to 8 devices at the same time. Built-in SD Card Slot Take this drive with you when you are going for trips. You can use it to transfer or backup photos and videos from the SD card so that you can keep on shooting. Fast USB Port If you want to transfer large amounts of data to or from the drive, you can use the USB. 3.0 port to do it. Long Lasting Battery This drive comes with a rechargeable built-in battery that allows up to 6 hours of continuous video streaming and up to 20 hours of standby time.