Microsoft Natural Ergonomic Keyboard 4000 v1.0 KU-0462 USB Tested Working

RCDEnterprises
(1171)
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US $34.99
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Condition:
Used

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US $23.60 USPS Ground Advantage®.
Located in: Bristol, Connecticut, United States
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Estimated between Thu, Oct 2 and Wed, Oct 8 to 94104
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eBay item number:116648251112
Last updated on Jul 17, 2025 06:49:44 PDTView all revisionsView all revisions

Item specifics

Condition
Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is ...
Product ID
76876-545-0321701-51434
Color
Black
Keyboard Layout
QWERTY (Standard)
MPN
X823051-001
Item Length
19.5 in
Brand
Microsoft
Type
Ergonomic
Item Height
~1.7"
Model
4000
Connectivity
USB
Features
Enhanced Function Keys, Multimedia Integration, Plug & Play, Flip Up Feet
Country/Region of Manufacture
China
Keyboard Language
English
Item Weight
2 lbs 9.6 oz
Item Width
~10"
UPC
Does not apply
Category

Item description from the seller

About this seller

RCDEnterprises

100% positive feedback•2.8K items sold

Joined Oct 2012
Usually responds within 24 hours
I sell a good variety of items at a reasonable price. I primarily stick to Automotive, Video games, and consumer electronics.
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Detailed seller ratings

Average for the last 12 months
Accurate description
4.9
Reasonable shipping cost
4.7
Shipping speed
5.0
Communication
5.0

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Product ratings and reviews

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5.0
2 product ratings
  • 2 users rated this 5 out of 5 stars
  • 0 users rated this 4 out of 5 stars
  • 0 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 0 users rated this 1 out of 5 stars

Well designed

Easy to set up

Good value

Most relevant reviews

See all 2 reviews
  • by veryoldsurfer
    Jul 28, 2025

    Best keyboard for writing books, and not getting carpal tunnel.

    As a writer, I have become absolutely spoiled by these ergonomic keyboards. It improved my writing speed, and the design completely cancels the ache in my wrists on the straight keyboards. I wish they were still making them but as long as I can find them in excellent shape on eBay, I'll keep buying them when they wear out (or get tea spilled on them which has happened before!). Once you get used to the layout of the keys, you'll never go back.

    Verified purchase: YesCondition: Pre-OwnedSold by: jsqualityfinds

  • by maril-saffe
    Jun 13, 2025

    My Fingers Love This Keyboard :)

    Of all the keyboards this is my favorite! It meets all of my needs and my fingers fly across the keys. Thank you.

    Verified purchase: YesCondition: Pre-OwnedSold by: m3ckon

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