A USB Composite device is the one with multiple interfaces controlled independently of each other. When using such device multiple functions are combined into a single device, for example, a keyboard and mouse, USB hard disk and DVD writer etc. The aforementioned problem is faced not because some issues lays with the device, but with the slot the device is plugged into. The slot, clearly, is slower in speed than the device. This doesn’t stop device from working altogether, but device can perform better, i.e. Faster, if plugged into a slot with higher speed.
The USB comes in two versions with two different speeds. The older one is V1.1 with a speed of 12 megabit per second, whereas, the newer ones are V2.0 which are capable of 480 megabit per second. The second generation of USB is about 40 times faster than the first. Similarly, the interfaces to plug-in USB devices are also either version 1.1 or 2.0. A USB 2.0 interface will support 1.1 devices and vice versa. Now, the older computers usually have all 1.1 interfaces and newer computers have all 2.0 interfaces. Those who are plugging in a 2.0 device in a 1.1 interface are likely to get this message because when the device speed is limited due to limited interface capacity.
The difference between version 1.1 and 2.0 is a hardware difference hence cannot be mitigated through any kind of software up gradation. All the interfaces on your computer might be 1.1, so plugging into different interface might not help. However, an add-on or expansion card can be installed internally, through an empty PCI slot, to upgrade your ports to version 2.0 and enjoy the high USB speed.
The USB comes in two versions with two different speeds. The older one is V1.1 with a speed of 12 megabit per second, whereas, the newer ones are V2.0 which are capable of 480 megabit per second. The second generation of USB is about 40 times faster than the first. Similarly, the interfaces to plug-in USB devices are also either version 1.1 or 2.0. A USB 2.0 interface will support 1.1 devices and vice versa. Now, the older computers usually have all 1.1 interfaces and newer computers have all 2.0 interfaces. Those who are plugging in a 2.0 device in a 1.1 interface are likely to get this message because when the device speed is limited due to limited interface capacity.
The difference between version 1.1 and 2.0 is a hardware difference hence cannot be mitigated through any kind of software up gradation. All the interfaces on your computer might be 1.1, so plugging into different interface might not help. However, an add-on or expansion card can be installed internally, through an empty PCI slot, to upgrade your ports to version 2.0 and enjoy the high USB speed.
