Microsoft Wired Natural Ergonomic Keyboard 4000, Retail
*Price sourced from Amazon.com. Last updated 2026-05-26. Price and availability subject to change.
Bottom line: The Microsoft Wired Natural Ergonomic Keyboard 4000, Retail is a solid pick with broad community endorsement in the keyboards & mice category, priced around $399.95, rated 4.4★ across 6,332 verified Amazon reviews. A solid choice — worth comparing against one or two close alternatives first.
Place your hands and arms naturally and comfortably with the Microsoft Natural Ergonomic Keyboard 4000. The improved split design encourages a more natural hand, wrist, and forearm position and its new curved key layout makes keys easier to reach. The Zoom Slider lets you zoom in for close-ups of Web pages, images, and more — with just the touch of a finger. And 5 customizable "My Favorites" keys give you instant access to the folders, files, and Web pages you use most.
SpecPicks Verdict
SpecPicks classifies Microsoft Wired Natural Ergonomic Keyboard 4000, Retail as a solid pick with broad community endorsement in the keyboards & mice category, based on 6,332 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for keyboards & mice of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Solid 4.4★ customer rating
- ✓ Large, well-vetted feedback pool (6,332 reviews)
- ✓ Split ergonomic design encourages natural hand, wrist, and forearm positions
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- Split ergonomic design encourages natural hand, wrist, and forearm positions
- Cushioned palm rest provides support and promotes a neutral wrist position
- Palm lift promotes a relaxed, natural angle for your wrist
- Media keys for music and video control
Full Specifications
| Brand | Microsoft |
|---|---|
| Color | Black |
| Style | Retail |
| Theme | ergonomic |
| Model Name | B2M-00012 |
| Style Name | Retail |
| Unit Count | 1.0 Count |
| Is Electric | Yes |
| Switch Type | Tactile/Mechanical |
| Model Number | B2M-00012 |
| Power Source | AC |
| Built-In Media | Microsoft Natural Ergonomic Keyboard 4000, Start Up Guide |
| Item Type Name | Microsoft B2M-00012 Natural Ergonomic Keyboard 4000, Black |
| Number of Keys | 104 |
Ready to buy?
Microsoft Wired Natural Ergonomic Keyboard 4000, Retail is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-26. Price and availability subject to change.