ZTE AL621 4G LTE FDD DC-HSPA USB Modem Specifications:

* DL 100Mbps, UL 50Mbps

* Support LTE, DC-HSPA+, HSPA+, WCDMA (UMTS)

* 4G LTE-FDD 2600MHz

* 3G UMTS 900/1900/2100MHz

* DC-HSPA+ DL up to 42Mbps

ZTE AL620 4G LTE modem Specifications:

* LTE/ UMTS/ EDGE Mode

* LTE: 100Mbps DL

* LTE: 50Mbps UL

* HSPA+: 42Mbps DL

* HSPA+: 11Mbps UL

ZTE AL600 4G LTE modem Specificatioins:

* LTE/ UMTS/ EDGE/ EVDO Mode

* LTE Frequency: 700/2600MHz

* LTE: 100Mbps DL

* LTE: 50Mbps UL

* HSPA+: 42Mbps DL

* HSPA+: 11Mbps UL