I know its not good for the eye , but I spend most of my time on my computer in the dark , ergo my feeling I would benefit from have a keyboard with illuminate key rather than go through have to squint and readjust my vision when I look down . the keyboard that I have to compare this to be Apple 's Aluminum Wired Keyboard MB110LL\/A , which ship with my Quad Core Xeon MacPro - very solid design , quiet , 2 usb 2.0 port , anodize aluminum enclosure - this come with 1 usb 2.0 port . the first major difference be the build of the keyboard . for the price , much can not be expect - it be no Apple design or Das Keyboard . if you have use typical pc keyboard , that be how it feel . turn it on for the first time be really cool , the color range for the back lighting , via the driver -lrb- default to Blue -rrb- , range from Red to Blue with a hue of Purple in between and different brightness setting . I think I would be able to use Yellow , Green , etc. - the gamut of the RGB ... Red , Purple and Blue be not bad , though . the driver allow for customize the `` g-keys '' to be assign to different key or to record a macro . especially for gamer , I believe place those key along the top would allow for easier coordination with game like StarCraft II , Diablo 3 , Dragon Age : origin where those key could easily be designate as potion , magic spell or unit selection key and visually align from the monitor to the keyboard . have the key vertically along the side force the user to adjust visual alignment which can increase the learning curve depend on the number of game play . this also make the keyboard fairly wide - smaller , chiclet-sized g-key along the top would have be a better design decision . the media key be a cool feature with a major caveat ; I be watch a cartoon with my daughter via VLC -lrb- VideoLAN Client -rrb- and notice -lrb- that -rrb- use the media key to Pause\/Play , although they work in VLC just fine , there be audible disc spin in the background - what I find out be that , no MATTER what , use those media key on the Mac launch iTunes ! there be no way to remap those key . the Windows key be dead , Mac OS X have a Keyboard Viewer which display what key be be press , that Windows key do nothing . I download a 3rd party key remap utility and be unable to do anything with that key . I do not use the Alt key all the time , but there be time it be necessary to have for multiple key press to force quit a application - akin to Windows ' ctrl + alt + Del bring up the sometimes necessary process Viewer . the audio volume roller be a slick feature , though . unfortunately my audio out be via digital optical -lrb- toslink for 5.1 surround sound -rrb- and volume be control by the receiver , not through the OS . there be 3 be ' key above the g-key that , when depress , instantly switch between previously assign profile for key assignment and color . those , of course , can further be customize . there be also a bunch of default for the game that be the latest available when the driver be release ... last year . unfortunately this list be retard by a scan of the hard drive for say game - if its not install , the profile be not available . no big deal , though , custom profile can be create . Logitech 's Mac OS X driver -lrb- pun intend after the fact -rrb- drive I up the wall . they be a unintuitive menagerie of option . the last Logitech device I own , besides a game pad , be a MX series Laser mouse a few year ago when Laser technology in mouse be new . I be glad they support the Mac , but they driver be horrible contusion for they otherwise solid hardware design . they have no all-in-one interface and lcd app be load by default no matter what g-series keyboard be plug in - this model have no lcd display . the lcd app , once I figure out how , can be individually enable and disabled . I guess Logitech throw one driver set at all they keyboard . for they keyboard with no lcd display this create unnecessary overhead . after use this product for about a week I factored a few thing ; the bulkiness -lrb- my workspace be in a armoire which the keyboard must share with my Razer DeathAdder mouse -rrb- , the lackluster driver , non-functioning Windows key which could be remap to nothing else - even other pc keyboard can have this button remap on a Mac , the media key which auto-launch iTunes , the loud key that take longer to depress than my Apple keyboard -lrb- in gaming and typing that make a huge difference ! -rrb- and I decide to return this item . I be sure for Windows there be a better experience , especially if you be use to run-of-the-mill keyboard and software design , but I get what I pay for , I suppose .