To speed up your workflow, the Lexar Professional USB-C Dual-Slot Reader works with SD and microSD UHS-II cards and offers creatives fast transfer speeds up to 312MB/s1 read. For added convenience, it is backwards compatible with UHS-I cards and has a USB-C connector to work with USB-C computers. The Lexar Professional USB-C Dual-Slot Reader features a USB-C connector which is reversible for convenient plug-and-play functionality making it perfect for USB-C computers. Designed with a USB 3.2 Gen1 interface, the Lexar Professional USB-C Dual-Slot Reader is also backwards compatible with USB 3.1 and 2.0 ports. The USB-C Dual-Slot Reader is designed with a LED activity light so you know when your transfers are complete. For photographers and videographers on the go, the Lexar Professional USB-C Dual-Slot Reader is small and compact so you can slip it in your pocket and go. Interface : USB 3.2 Gen 1 Connector : USB Type-C Transfer Speed : Up to 312MB/s1 (UHS-II) Up to 170MB/s2 (UHS-I) Operating Temperature : 0 °C to 40 °C (32 °F to 104 °F) Storage Temperature : -10 °C to 50 °C (14 °F to 122 °F) Dimension (W x L x H) : 41.4 x 135 x 10.6 mm / 1.63” x 5.31” x 0.42” (with cable) Weight : 25 g / 0.055 lbs Warranty Two-year limited warranty System Supported Mac OS X 10.8+ Windows 10/8/7/Vista/XP USB-C port Accessory Built-in USB Type-C cable