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127
The USB interface is designed to handle up to 127 devices at up to 480 Mbps. Realistically anything more than about 2 dozen devices will usually result various odd behaviors.
In theory a single hub of USB can support 127 devices. In practice, this will not actually occur. Most computers do not have enough power to drive that many devices. A reasonable number would be about 20.
127 USB devices are supported by one host controller.
On a typical setup, only one device can be connected to the ports. However, if you have a special USB port, or a device that will split a USB port, you can connect 2 or more devices.
it can hook up to 127 devices and the speed is faster than any other port on the computer
A personal computer external bus standard which can support up to 127 peripheral devices in a daisy chain configuration, can support plug-and-play (hot plugging), and has a total bandwidth of 1.5 megabytes per second. what are these devices?
This depends on if you use the other ports on your computer to connect devices to also. If you only use the USB port and connect it to USB hub's you can connect up to 126 devices. Without using any USB hubs you will be limited to only one USB device.
USB ports transmit data to up ti 127 devices in a daisy chain.
usb 2.0 can support 127 devices
127.
USB Will allow up to 127 devices per host controller. Usually, a host controller has more than one USB port. The host controller will only allow 127 devices in total (including hubs), so you can not have 127 per port.