Insert the Huawei e1750 into an available USB port on your Mac, the new device will be detected as a USB storage device:

Double click the installer file:

Key Features

• HSUPA / HSDPA / UMTS 2100 MHz
• EDGE / GPRS / GSM 1900/1800/900/850 MHz
• Equalizer
• HSUPA data service of up to 5.76Mbps (network-dependent)
• HSDPA data service of up to 7.2Mbps (network-dependent)
• Receive Diversity (Optional)
• SMS Service
• Micro SD Card Slot
• Fully Plug and Play