ZTE MF668A Unlocked HSPA+ 3G 4G 21.6Mbps USB GSM Mobile Broadband Modem Unlocked ready to use with any Global carrier in the operating frequencies supported for this Modem, with a data broadband activated SIM Card HSPA+/HSDPA/HSUPA/UMTS/WCDMA 850/1900/2100 MHz GSM / GPRS / EDGE - 850/900/1800/MHz Download up to 21.6 Mbps, Upload up to 5.76 Mbps. Micro SD slot. up to 32GB . Sim card or Micro SD card are not included. Internal Antenna. External antenna port. Modem works in HSPA+ 4G not LTE 4G