The DWM-222 4G LTE USB adapter is a portable travel modem that allows you to connect to the Internet wherever you are. With fast downlink and uplink data rates, as well as low latency, it provides you with a high-performance and responsive connection when you’re on the road. Works with Windows and Mac OS-based computers or notebooks with USB port. SIM slot (6-pin) allows you to access the Internet using your mobile service. MicroSD card reader gives another portable storage option on-the-go. Integrated antenna keeps a small footprint for true portability. LTE/DC-HSPA+/HSPA/WCDMA support for the latest in mobile network technology. GSM/GPRS/EDGE support for legacy mobile plans and fallback in the absence of a 4G LTE signal. Data rates of up to 150mbps downlink and 50mbps uplink. Connection manager software gives you access to your SIM card’s phonebook and SMS messaging. Built-in drivers and software mean that no CD-ROM drive is required. LED indicator let you know the status of your connection instantly. One piece design to simplify usage and travel. Features Bandwidth: 1.4, 3, 5, 10, 15, 20 MHz Minimum System Requirements: Windows XP/Vista/7/8, Mac OS X 10.5 or higher; 128 MB RAM or greater; 50 MB available disk space LTE Output Power: Class 3 (23 dBm) Status LED: Green (blinking): Connected to LTE network; Blue (blinking): Connected to 3G network; Purple (blinking): Connected to 2G network; Red (blinking): No service/device error Software Features: Connection manager, phonebook, SMS messaging, APN manager Certifications: RoHS, CE, WHQL Antenna: Integrated antenna