MODEL:ZTE MF831
PRODUCT DETAIL : 4G LTE USB MODEM (DIRECT SINGLE PC NO WIFI HOTSPOT)
4G BAND: LTE FDD 800/900/1800/2100/2600MHz​
3G BAND: UMTS 900 / 2100 MHz
2G BAND: GSM/GPRS/ED​​​​GE 850/900/1800/1900 MHz
4G SPEED:
LTE DL Speed up to 150 Mbit/s
LTE UL Speed up to 50 Mbit/s ​
3G SPEED:
DC-HSPA+DL (DOWNLOAD) up to 43.2Mbps
DC-HSPA+UL (UPLOAD) u​p to 5.76Mbps​
FEATURE:
Micro SD card slot up to 32GB (not include)
2 x TS9 External Antenna slot (not include external antenna)
AUTO APN​ - WEB IU INTERFACE SETTING
SMS feature
Data limit setting
Phone Book setting
IPV6 Supported
Online Update 
Multimode datacard - AUTO switch to 4G / 3G network
Dimensions : 90 x 28.4 x 13mm (LxWxH)
Weight : Approximately 40g​