HSDPA Cellular Modem
What is a 3.5G modem and 3.75G Modem? Simply speaking, it's a kind of 3G modem works under HSDPA networks or HSUPA networks. We name HSDPA network as 3.5G networks, and HSUPA network as 3.75G networks.
The Wireless 3.5 modem is widely used in various kinds of wireless M2M solutions nowadays. For data transmission or for SMS, or other applications.
The M300d HSDPA cellular modem and UH683um HSUPA Modem offer the ultra-fast HSDPA at 7.2Mbps (downlink) and 3G HSUPA at 5.76Mbps. If neither is available, the bus-powered USB HSDPA modem can resort to quad-band EDGE/GPRS at up to 384kbps. (HSUPA 3.75g modem can be 14.2Mbps downlink and 5.76Mbps uplink)
HSDPA USB Modem M300d allows mobile e-mail and internet access. Even multimedia streaming is possible. The ultra compact quad-band ,it has all the right industry standard interfaces for dial-up , voice, SMS and fax applications. It can be powered by a wide range of voltages. A built-in SIM card reader makes it easy to plug the USB HSDPA
Modem into your application.
Additionally, the most application for the M300d HSDPA USB modem is for the M2M wireless solutions.
HSDPA USB Modem - Industrial Application
For more HSDPA cellular modem solutions, please refer to the catalog and brochures.
What does it require if use a 3.5G modem and 3.75G modem?
1. Device supports USB port;
2. A sim card supports 3.5g HSDPA network or 3.75g HSUPA network;
M300 Class Types:
M300 Series 3G modem contains following:
M300d - HSDPA version, works under HSDPA/EDGE/GPRS/GSM networks;
M300u - HSUPA version, works under HSUPA/HSDPA/EDGE/GPRS/GSM networks;
M300p - HSPA version, works under HSPA/HSUPA/HSDPA/EDGE/GPRS/GSM networks;
M300p+ - HSPA+ version, works under HSPA/HSUPA/HSDPA/EDGE/GPRS/GSM networks;
M300ev - CDMS2000 EVDO version, works under EVDO/CDMA1x networks;
M300t - 4G LTE version, works under 4G LTE and back compatible to HSPA/HSUPA/HSDPA/EDGE/GPRS/GSM networks;
Download - HSDPA Modem
M300d HSDPA USB Modem
M300dg with GPS
For more Industrial Cellular Mobile Modems, please refer to Wireless_Modem_list
For non-industrial cellular mobile modems, please refer to
Appearance - M300d 3.5G Router
UMTS/WCDMA/HSDPA: 2100Mhz or 850/900/1900/2100Mhz
Connect to Internet , Audio, Data Transform, Fax, SMS
Supply voltage range 7 - 25VDC(9V suggest)
Class 4 (2W) for EGSM900
Class 1 (1W) for GSM1800
Steel shell: good electromagnetic shield and , heat radiate performance
Electrostatic Discharge (ESD): 3 class
Radiated, radio-frequency, electromagnetic field immunity test: 3 class
Storage Temperature: -40 ~ 85°C
Working Temperature: -30 ~ 75°C
Humidity: 95% (non-condensing)