How many devices can be supported by the USB 3.0 standard?

How many devices can be supported by the USB 3.0 standard?

• A. 64
• B. 127
• C. 256
• D. 512

Answer: (B)

The USB 3.0 standard supports up to 127 devices. This capability comes from the underlying architecture of USB, which uses a tiered star topology. In this setup, a single host controller can connect to multiple devices through a series of hubs, and each hub can support additional devices. The USB specification allows for a maximum of 127 devices to be connected to a single bus, which includes the host controller itself. This number includes all devices connected via hubs, as each hub can connect multiple devices while still counting towards the total limit. The other options propose higher numbers that exceed the specifications of the USB standard. Understanding this limit is crucial for configuring USB devices in real-world applications, ensuring that users do not encounter issues by exceeding the maximum capacity of connected devices.

The USB 3.0 standard supports up to 127 devices. This capability comes from the underlying architecture of USB, which uses a tiered star topology. In this setup, a single host controller can connect to multiple devices through a series of hubs, and each hub can support additional devices.

The USB specification allows for a maximum of 127 devices to be connected to a single bus, which includes the host controller itself. This number includes all devices connected via hubs, as each hub can connect multiple devices while still counting towards the total limit.

The other options propose higher numbers that exceed the specifications of the USB standard. Understanding this limit is crucial for configuring USB devices in real-world applications, ensuring that users do not encounter issues by exceeding the maximum capacity of connected devices.