USB 2.0 to SATA 15+7 pin connector cable allows you to connect a standard 2.5" SATA HDD mobile enclosure to your laptop via USB 2.0 Port at a speed up to 480Mbps. It is ideal for you to backup files or upgrades your laptop hard drive. Up to 480Mbps High Speed: This is a USB 2.0 version, backward compatible with USB 1.0, with data transfer rates up to 480Mbps. Simple Operation: USB Universal Serial Bus interface, driver-less, easy and convenient to carry and use. Warm Tip: When finish using the drives, please click the disk icon at the lower right on your laptop, then choose “Eject Hard Drive” to remove the hardware safely. Please note: This adapter only works with 2.5 SATA laptop hard drives or 2.5 SSD drives. This will not work for Desktop 3.5-inch Hard Drives.