Specifications

DL 100Mbps, UL 50Mbps
Support LTE,DC-HSPA+,HSPA+,WCDMA(UMTS)
4G LTE-FDD 2600MHz,3G UMTS 900/1900/2100MHz

ZTE AL621 Unlocked 100Mbps 4G LTE mobile dongle usb modem specifications:

•LTE DL up to 100Mbps
•LTE UL up to 50Mbps
•DC-HSPA+ DL up to 42Mbps
•LTE FDD 2600MHz
•DC-HSPA+/UMTS 2100/1900/900MHz
•EDGE/GPRS 900/1800MHz
•Easy to install
•Plug and Play
•OS:Windows XP SP2, Vista, or  Windows 7   

ZTE AL621 1010 Express 100 Modem supports the mainstream FDD 4G LTE frequency 2600MHz and compatible with the 3G DC-HSPA+/UMTS networks, auto switch between 4G/3G/2G, up to 100Mbps and 50Mbsp LTE speeds, 42Mbps and 5.76Mbps speeds under 3G mode.