產(chǎn)品詳情：

ME909s-821是第一個LTE CAT4模塊基于高科技車規(guī)級芯片。
ME909s-821支持150Mbps的下行數(shù)據(jù)速率，包括增強的功能像FOTA，USSD和華為增強命令。
華為海思芯片4G模塊，支持中國聯(lián)通4G ，3G ，2G，中國移動4G，3G, 2G，中國電信4G，不支持中國電信3G，2G。
LTE(FDD): B1,B3,B8; LTE(TDD): B39,B40,B41(38), all bands
with diversity
DC-HSPA+: B1,B9,B5,B8; TD-SCDMA: B34, B39, all bands with
diversity
EDGE/GPRS/GSM: 1800/900MHz
MIMO
LTE: DL 2*2 MIMO
HSPA+/DC-HSPA+: DL 2*2 MIMO
Output Power
LTE: +23dBm (3GPP TS 36.101 R8 Class 3)
WCDMA/HSPA+: +24dBm (Power Class 3)
TD-SCDMA/HSPA：+24dBm （Power class 2）
EDGE 1800MHz: +26dBm (Power Class E2)
EDGE 900MHz: +27dBm (Power Class E2)
GSM/GPRS 1800MHz: +30dBm (Power Class 1)
GSM/GPRS 900MHz: +33dBm (Power Class 4)
USIM (Class B and Class C)
Power supply
3.2 V to 4.2V (typical: 3.8V)
Temperature range
Operational: -30°C to 70°C
Extended: -40°C to 85°C*
Dimensions: 51 mm x 30.4 mm x 3.57 mm
Weight: approx. 12g
AT commands
3GPP TS 27.007 and 27.005
Huawei extended AT command
OS: Linux, Android, WinCE, Windows 8/10