The primary connectivity is via USB 2.0 full speed, and it includes drivers for major operating systems, including Android and Linux.

To facilitate integration into small embedded systems, the MU509b features standard AT command control and has an embedded TCP/IP and UDP/IP stack. Additionally, the MU509b offers digital audio connectivity in PCM format and analog microphone and speaker connectivity with echo cancellation.
An evaluation board is available, allowing users to assess the MU509b's performance and enabling rapid development, saving costs and reducing time-to-market.

Supported speeds:
o HSDPA: DL 3.6 Mbps
o EDGE: DL 296 Kbps / UL 236.8 kbps
o GPRS: DL 85.6 kbps / UL 107 kbps

The main physical characteristics of the Huawei MU509b module are:
o Dual Band UMTS/HSDPA
o WCDMA/HSDPA: 2100/900
o Class 3 (+24dBm)
o Quad-band GSM/GPRS/EDGE-2G/2.5G/2.75G
o EGSM850&EGSM900 MHz: Class 4 (2W)
o GSM1800&GSM1900 MHz: Class 1 (1W)
o EDGE: Multi-slot Class 12
o Connectivity
o USB-HS (FULL SPEED)
o 1 x 8 UART

Other features:
• FOTA – Firmware Over The Air – Ability to update the FW remotely via the wireless telecom network
• USSD – Unstructured Supplementary Service Data – Ability to send short messages (up to 182 alphanumeric characters) in machine-to-machine systems

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