The converter card is plug and play, which is easy and convenient to install. The converter card supports USB large-memory storage and high-speed transmission, which is practical and useful. Made of PCB material and metal, the converter card is reliable, anti-corrosive and eco-friendly to use. The length of the converter card is 50mm and width is 30mm. The converter card is compatible for Windows ME/2000/XP/Vista/7/8/10 and for Mac OS. It also supports the reading of Micro SDXC/SDHC/SD-Card with Readyboost function. It also supports the functions of flash card controller, DMA hardware engine and 5V-3.3V/3.3V-1.8V voltage regulator. Item Name: Converter Card Material: Metal,PCB Height Type: Full Height, Half Height Transmission Rate: 480Mbps(2.0 Standard) Dwonward Compatibility: 1.0 Interface Type: Mini Pci-e, 2 x Micro SD-Card Slot Compatible System: for Windows ME/2000/XP/Vista/7/8/10, for Mac OS Features: Easy Installation, High Strength, Plug Play Size Details: 5cm x 3cm/1.97" x 1.18" (Approx.) Notes: Due to the light and the screen setting difference, the item's color may slightly differs from the pictures. Please allow slight dimension difference due to the manual measurement. The product does not support TF card hot swap. The product supports the reading of TF card memory up to 512GB. The TF card is not included. Package Includes: 1 x Converter Card(Others Not Included)