INTEX DC 21.6 SWM HSUPA USB Adapter allows users to acquire 3G mobile broadband access simply by inserting a standard SIM card into the adapter and plugging it into their laptop or desktop computers. It supports the latest 3.75G HSUPA technology, which provides improved data transfer rates. Equipped with its internal antenna, micro SD card slot and SIM card slot, It is a great choice for users to connect to the Internet in locations that are unable to receive conventional broadband. You can enjoy quick and easy access to email, the Internet or business applications on your laptop while on the go. High Speed Data Transfer - Up to 21.6 Mbps download and 11 Mbps upload With DC 21.6 SWM Up to 21.6 Mbps download and 11 Mbps upload speeds, the 3.75G gives users a fluid Internet surfing experience. The device’s high upload speed allows users to quickly send large files, such as e-mail with attachments, photos or business documents