Modem: 
ZXIC 7520 V3(LTE Cat4)

Form Factor:
LCC  33*27*2.3 mm

Bands:
LTE FDD: Band 1/3/5/8    LTE TDD:  Band 34/38/39/40/41
WCDMA:  Band 1/8       TD-SCDMA:  Band 34/39  
GSM: 900/1800MHz

Speed: 
LTE FDD: 150Mbps DL/50Mbps UL
LTE TDD: 112Mbps DL/10Mbps UL
HSPA+: 21Mbps DL/5.76Mbps UL
TD-SCDMA: 4.2Mbps DL/2.2Mbps UL
EDGE: 236.8kbps DL/236.8kbps UL
GPRS: 85.6kbps DL/85.6kbps UL

Interfaces:
USIM: 1.8V/3V x 1
USB 2.0 x 1
UART x 2
EINT
System Indicator
Clock
ADC x 1
I2S
I2C
SPI
Antenna: Main/Div
Temperature:
Operating: -40 to +85 ℃
Storage: -40 to +85 ℃
Support OS:
Linux
Android
CCC/SRRC/NAL