This Micro USB to Mini USB Adapter features a Micro USB female (B-type) connector and a Mini USB male connector - a cost-effective and convenient solution that lets you sync and charge Micro USB devices (such as BlackBerry(r) or Android-based cell phones) to older Mini USB devices.Providing both versatility and durability, the Micro USB to Mini USB adapter saves you from having to carry multiple cables to accommodate different types of USB device connection (Micro USB/Mini USB), and is backed by StarTech.com's Lifetime Warranty.