Viziflex's Formfitting Keyboard Cover for Logitech K750 Mac Version P/N 812G106

If you're buying the keyboard itself now when it's only $60-40, maybe not so much of an investment, but considering I bought the k750 about two years back when it was relatively new in the market and costed nigh $100, a $17 cover is a cheap but worthwhile investment. Been taking care of the keyboard very well, haven't even taken off the protective plastic until a day ago, but even with homemade covers and stuff the dust and hair and other gunk were getting worrisome.As seen in the photo, the keys line up perfectly with the indentation in the cover. Just be absolutely sure you are using the 104 key ANSI layout on the Windows version keyboard, not the Mac version or the 105 key ISO layout(commonly known as international).Easy way to tell? Vertical Enter key and an extra key between the left shift and Z is international, the silver keyboard is Mac.Anyways, back to the cover. It has extensions all around with adhesive to grip the underside, it's very strong and helps hug the keys decently.It does have its flaws. As-is, the adhesive will block the battery port(for those DIYers that will want to replace batteries for just $9, like me) as well as the small back stands. Easy enough to adjust with a scissor, but still, not a ready-out-of-box product. And the cover doesn't hug the base of the keyboard because the indentation for the keys isn't deep enough. It will make the cover "float" noticeably as you use it.

This really protects from dust but you have to adhere the cover to the bottom of the keyboard to get a good fit. If it comes with a sticker it can be easily removed without damaging the cover.

I was reluctant to get this because of the bad reviews, but if you purchase the correct item (Mac or Non Mac - I got the Non Mac) it works fine. Yes, you may have to cut a little if you want to use the feet on the keyboard. That is an easy, one-time action. It does take a little work to get it positioned and smoothed out really well. I just took a tiny bit of the paper covering the glue strips of so I could stick it and move it if necessary. Then once I was comfortable and it was working well, I removed the rest of the strip and secured it in place.These kind of covers do take a little getting used to. Most people will adjust in a day or 2. If you're not able to give something that feels odd at first becuase you've never felt it before, then don't bother. But if you can, I think you will like this as I do. No more crumbs in my keyboard!

I would say it compares to covering your keyboard with the same material freezer bags are made of. That nice tactility that you appreciate with this type of keyboard (Apple style) is almost completely eliminated. Its a bit thick, and the key indents are not nearly deep enough, which doesn't allow it to "mold" to the keyboard but instead merely cover it. The "sticky" edged tabs that are supposed to be positioned on the underside of the keyboard are a hindrance. I cut them off shortly after putting the cover on my keyboard. If too tight, they actually mash the keys along the edge and render the keyboard unusable.As far as protecting the keyboard, it will most certainly do that! For that reason, I will continue using it reluctantly.Note to manufacturer: As a prototype I'd say your off to a decent start. I would suggest the following: thinner, or perhaps more pliable material, fine tune alignment to keys and mold deeper, get rid of attaching tabs and instead just deepen the corner "pockets".

This so-called "keyboard cover" is literally just that. A piece of plastic that wraps over the top of your keyboard. There are no encasing molds for the keys, so it's like you're just typing on a flat, plastic surface with just the outlines drawn on them. In my opinion, this degrades the tactile response of the keyboard. The way that the cover wraps around also affects the action of the space bar. You have to apply it with a lot of give so that the lower keys can fully extend back up after pressed.Furthermore, even though the cover itself is of a fairly durable material, but feels like a cheap product as there are many imperfections on the surface of the cover and the end tabs with the adhesive tape are tattered-looking and have rough-cut edges.I attempted to use the cover anyway as there are no other options for this exact model keyboard. Within a few months, the area around the enter key began to warp up and create a wavy surface. Soon after, the area near the 'w' and 'e' began warping. Now there is considerable gaping between the cover and the keys in those areas, and there's always a slight flick noise (from the cover flipping inside out in the warp) when pushing down.I've attempted to contact them about these issues and possibilities of a replacement (perhaps mine was from a bad batch), and they have not responded, nor acknowledged any kind of inquiry. I seem to remember that they make returning products very much of a hassle as well.My advice is to steer clear of this company and this product.

Been using it for a few months and it no longer lays flat. It bubbles up over the d, e, s key region on the left and around the k, k, region on the right. This slows trying down. It does protect the keyboard however.