Quantum qhm 7406 wired keyboard

QHM 7406 Keyboard Compact size for space saving Key pressure 55g comfortable feeling effectively reducing typing stress Noiseless design for near zero working environmentDimension:45.5x16.4x2.1cmsSuitable span of operation:10,000,000timesCompatible with windows 98/2000/ME/NT/XP/Vista/Linux/Window 7/Window 8/Window 8.1 222 Wired USB Mouse Compact size for space Powerful optical sensor for optimum accuracy Convenient for both left and right hand System requirements Win XP Win Vista , Win 7, Win 8,Win 10 USB 4 Port Hub 6633 4 USB ports standard A type up to 100mA current per port The QHMPL hub provides full over current protection QHMPL USB HUB supports the following signaling rates Low speed rates of 1.5 M bits/s (183kB/s) as is defined by USB 1.1 Full speed rate of 12 M bits/s(1.43 MB/s) the basic USB data rate defined by USB 1.1 High speed (USB 2.0) rate of 480 Mbit/s(57 MB/s)"QHMPL Hub is capable of chaining up to 127 USB devices Truly plug & play including windows 98,2000,ME,XP,Vista,WIN 7,WIN 8,WIN 9 and WIN 10Mac Linux virtually all OSUSB 2.0 and ACPI IBM compatible PC or i-Mac PC(OS8.6) I-Mac,I-Book,G3,G4IBM/MAC