Description of quantum usb hub 2.0 (quantum 6660)
qhm usb hub 2.0 provides full over current protection. It is capable of chaining up to 127 usb devices. It comprises of 4 usb ports standard a type up to 100ma current per port and has 1 usb mini b type female input connector. it supports the following signaling rates:-
a low-speed rate of 1.5 mbits (183 kbs) as is defined by usb 1.0
the full-speed rate of 12 mbits (1.43 mbs) the basic usb data rate defined by usb 1.1
a high-speed (usb 2.0) rate of 480 mbits (57 mbs)
the qhm usb hub 2.0 is compatible with all os including windows 98, 2000, me, xp, 7, mac linux virtually all os. It has standard 2.0 usb port and is acpi compliant.

Description of quantum usb hub 2.0 (quantum 6660)
qhm usb hub 2.0 provides full over current protection. It is capable of chaining up to 127 usb devices. It comprises of 4 usb ports standard a type up to 100ma current per port and has 1 usb mini b type female input connector. it supports the following signaling rates:-
a low-speed rate of 1.5 mbits (183 kbs) as is defined by usb 1.0
the full-speed rate of 12 mbits (1.43 mbs) the basic usb data rate defined by usb 1.1
a high-speed (usb 2.0) rate of 480 mbits (57 mbs)
the qhm usb hub 2.0 is compatible with all os including windows 98, 2000, me, xp, 7, mac linux virtually all os. It has standard 2.0 usb port and is acpi compliant.