The HSPADataCard VoUSB Device is typically associated with a USB modem or data card used for mobile broadband internet connectivity. The "HSPA" in the name refers to High-Speed Packet Access, a technology for mobile networks that enhances 3G speeds for internet access. The "VoUSB" component often stands for Voice over USB, which allows for voice services through the same USB device (often found in dual-purpose data/voice cards).
In simple terms, this driver is for a USB modem or data card that enables both data and voice communication over a mobile network, and it needs a specific driver to function properly in a Windows operating system.