ADD AN EXTERNAL HARD DRIVE: This 3ft / 1m USB 3.0 to eSATA adapter lets you connect any external eSATA hard drive (HDD), solid state drive (SSD), or optical disc drive (ODD) through the USB 3.0 port on your laptop or desktop. MAXIMUM COMPATIBILITY: Easily connect your USB-enabled computer or laptop, such as your Dell OptiPlex or MacBook to a SATA drive using this eSATA HDD cable. COMPACT DESIGN: This hard drive adapter cable features a compact, portable form factor design that fits perfect in your laptop bag, making it ideal for professionals on the go.