Lexar Multi-Card 2-in-1 USB 3.1 Reader, Works with SD and microSD Cards Black Product Details Brand: Lexar Series: LRW450UBNA Item model number: LRW450UBNA Operating System: Mac OS X 10.8+, Windows 10/8/7/Vista/XP, USB 1.1+ port Item Weight: 0.56 ounces Product Dimensions: 2.51 x 1.5 x 0.6 inches Item Dimensions LxWxH: 2.51 x 1.5 x 0.6 inches Color: Black Manufacturer: Lexar International Country of Origin: China Brand: Lexar Media Type: SD Card Connectivity Technology: Microsd,Usb Special Feature: Compact Color: Black Perfect for high-speed on-the-go file transfer Simultaneously transfer files from SD and microSD slots to PC Compact and portable design Backwards compatible with SD and microSD UHS-I cards (up to 170MB/s) Compatible with USB 3.1 and 2.0 ports, and comes with two-year limited product support The Lexar Multi-Card 2-in-1 USB 3.1 Reader works with SD and microSD cards, while leveraging USB 3.0 technology to deliver high-speed file transfers from card to computer. With speeds of up to 312MB/s (reads up to 5 times faster than USB 2.0), you can significantly improve your workflow and maximize your bandwidth. This 2-in-1 card reader also supports SD and microSD, SD UHS-I and UHS-II memory cards. This makes the reader an excellent choice for quick multi-card photo and video transfers.