Model Number: HDM1004G-1 Brand Name: Head weblink Key Specifications/Special Features: Highlight. 1.It can provide UART(RS232) console communication port, LAN, WAN port. 2. It can support Openwrt and SDK firmware version.Frequency bands
* 4G LTE router--HDRM1004G Series
Version A
LTE FDD. B2,4,5,17
UMTS. 850/1900MHz

Version E
LTE FDD. B1,3,7,8,20
LTE TDD B38, B40
UMTS. 900/2100MHz
GSM. 900/1800MHz

Version C
LTE FDD. B1,3,7,8
LTE TDD B38, B39, B40, B41
UMTS. 900/2100MHz
TD-SCDMA. 1880-1920MHz & 2010-2025MHz
GSM. 900/1800MHz

Version JC
LTE FDD. B1,B3,B8,B18,B19
LTE TDD. B41
UMTS. B1,B6,B8
GSM. 900/1800MHz

Version JE
LTE FDD. B1, B8
UMTS. B1, B8
GSM. 900/1800MHz

Version SA
Seven-band LTE-FDD B1/B3/B4/B5/B7/B8/B28
Tri-band LTE-TDD B38/B40/B41
Qual-band UMTS/HSDPA/HSPA+ B1/B2/B5/B8
Qual-band GSM/GPRS/EDGE B2/B3/B5/B8