ITEM NAME:Dual Micro-Sd Tf To Mini Pci Express Memory Card Reader Adapter Converter C H4G8 Dual Micro-Sd Tf To Mini Pci Express Memory Card Reader Adapter Converter C H4G8 Dual Micro-SD to Mini PCIe adapter is low-cost SSD and Ready-boost solution for laptop computers. The TF card can be easily inserted into the Mini card slot with this MR14, for easy operation. Can not only be used as card reader, but feature the function of flash card controller, hardware DMA engine and 5V-3.3V/3.3V-1.8V regulator. Designed for use with laptops. Designed 2 slots for two MicroSD cards. Material: PCB board + metal Photo Color Compatible for Windows 7 / Vista / XP and Mac OS. Fully compatible with USB 2.0 High Speed and backward compatible with USB 1.1 specifications. Supports for Windows ME/2000/XP/Vista/7/8/10 and Mac OS. Complies with USB Device Class Definition for Mass Storage and Bulk-Transport V1.0. Complies with Secure Digital Card (SD) specification up to ver. 3.0 (SDXC). Integrated hardware DMA engine enhances overall performance of data transfers. USB 2.0 based PCI Express Half-Mini Card design, suitable for any PCI Express Mini Card slot. Item: Adapter Card Adapter Form Factor: Mini PCIE Item Size: 3 * 2.7cm / 1.2 * 1.06inch (Without Bracket) Item weight: Approx. 3g / 0.1oz (Without Bracket) Package Include: 1 * Adapter Card 1 * Metal Bracket 1 * bag of Screws