Microsoft Ergonomic Keyboard 4000 Replacement Parts

[Integrated] I've been using the Microsoft Natural Ergonomic Keyboard (4000?) for years. I've found that I need to see the keys more often and thought the old keyboard quite large. While looking for low-vision keyboards I found this illuminated model. I thought I'd never adapt to or like a flat keyboard like this but I was so wrong. This is the best keyboard I've ever used. Easy strike, silent, and I can see the keys without bright room lighting -- even without my glasses! A full numbers layout, easy extra function keys, great configuration, easy setup, and a sophisticated appearance. Love it. Highly recommended for everyone at all skill levels.

[USB-A ] It is the only compact ergonomic keyboard that seems to be available, that is structurally sound (without bending).

[0.33 lb] Works the same as the other I would think but not sure if will take the same replacement parts as the Zeeion model.

[Mac] This keyboard was the replacement I was hoping for.

[2.305 lb] This keyboard works well with Microsoft's x-box console. I also use the M720 mouse at the same time!

[Yes] No aftermarket keyboard works as well as the Microsoft Pro Type. And, B&H had it in stock when no one else did.

[Magenta] Replacement cartridge. Flawless operation. Recommended to always use oem replacement parts.

[2x USB-A 2.0] I'm using this keyboard with Nuendo. The shortcuts are a great time saver. It's ergonomic. Highly recommend it.

[USB-A ] With the Covid pandemic continuing, and my working remotely from home, I decided to buy an ergonomic keyboard with an ergonomic mouse, and trying to find one similar to the one I use at work was almost impossible until I stumbled upon these. They were shipped quickly and very easy to set up. I'm free from cords! I love them.

[USB-A ] The ergonomic, lighted keyboard is everything I have been looking for. For years I bought other forms of lighted keyboards. One just had lights under the key section but the keys themselves didn't light up. One lit all the spaces between the keys but nothing ever lit up each letter on the keys. None of the other lighted keyboards were ergonomically shaped. This board gives you varying intensity of the lights, three colors of lights, lights on and off switch and is ergonomically configured. Somebody really put some thought into this keyboard.