Specifications: Made of metal material, the card reader is durable to use. The memory card reader supports hot plug function. It is powered by the USB interface without an external power supply. It adopts high-speed USB2.0 transmission and supports USB 1.1. Made of metal material, it is durable to use. High speed transmission can reach up to 480 mb/s. Item Name: Card Reader Material: Metal Applicable: for Micro-SD/TF/MS/M2 Card Transmission Speed: Up to 480mb/s Compatible Systems: for Windows 98SE/Me/2000/XP/Vista/7, for Mac OS 9.0 or Higher Version Compatible with: T-Flash, Micro-SD, Micro SDHC, Memory Stick Micro (M2), Memory Stick (MS), Memory Stick Pro (MS Pro), etc Features: Durable, High Speed Transmission, Easy Storage Size: 61mm x 20mm x 15mm/2.4 and quot; x 0.79 and quot; x 0.59 and quot; (Approx.) Notes: Due to the light and screen setting difference, the item and 39;s color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Card Reader (Card Not Included) Durable, High Speed Transmission, Easy Storage Metal Card Reader Card Reader Metal