How does this compare to the microsoft ergonomic 4000 keyboard? i’ve been using the ms4000 for years on my imacs, but ms has not updated the driver.

I actually use the MS 4000 at home; I bought the Perixx for a friend. However, I’ve used it when visiting, and I find the main keyboards virtually identical: the touch is just a little different, but I had no problem with it. The one real difference is in the arrangement of the arrow keys and the block of six keys including Insert, Home, etc.: the former are arranged in a diamond, and the latter in a 3x2 block instead of a 2×3 block. That did take a little getting used to, but I was adapting pretty well even after a short visit.

Is this a mechanical keyboard? What kind of switch does it uses?

This keyboard uses a rubber dome switch. See my review for full details, but, it has a GREAT snappy tactile feel to it with virtually no clackiness at all. The best way I can describe it is to compare it to a light touch, quiet buckling spring keyboard (think IBM Model M or the newer Unicomp versions). The Cherry MX switches, blue or brown do NOT provide the same sort of feel this board does and I'd take this over mx blue/brown or buckling spring any day of the week. I've had those boards and choose this one due to the key feel and of course the superior split layout. The comfort cannot be beat.

Any know if this keyboard works with a mac, such as a macbook pro? my old microsoft 4000 ergonomic no longer keeps up its software & soon won't work.

Yes, I use it in a Macbook Pro with High Sierra at work.

Is this a soft touch keyboard, meaning nonstiff keys, they push well with gentle strokes?

I find that if I don't press hard, I lose keystrokes. I've had the keyboard for a couple of weeks. Before that I had a Logitech cordless comfort duo and this was the closest thing I could find to that but this is a little bit less sensitive than that one was and frankly I find it frustrating. Both had "real" keys not chicklet keys like a laptop. I'm hoping and expecting to get used to it but for now I'm considering my options because I drop a lot of letters that I didn't with the logitech. Unfortunately they don't make the logitech one anymore and logitech has gone all in on the wave keyboard, which while nice, is less ergo than the cordless comfort.

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⌨️ Elevate your typing game—comfort meets productivity in every keystroke!

WRIST WELLNESS - Built-in palm rest supports your wrists comfortably, preventing fatigue and boosting productivity.
ERGONOMIC MASTERY - Split 3-D design aligns perfectly with your natural hand posture, reducing strain during marathon work sessions.
TACTILE PRECISION - Responsive keystrokes minimize finger pressure, delivering a satisfying and efficient typing experience.
PLUG PLAY SIMPLICITY - Instant USB connectivity with a generous 6-foot cable—no drivers, no hassle, just type away.
FUTURE PROOF COMPATIBILITY - Seamlessly works with Windows 7 through 11, ensuring your setup stays cutting-edge.

The Perixx PERIBOARD-512B is a wired ergonomic split keyboard designed to promote natural hand positioning and reduce wrist strain. Featuring a tactile key response and integrated palm rest, it connects via a 6-foot USB cable for easy plug-and-play use across Windows 7 to 11 systems. Ideal for professionals seeking comfort and efficiency in their daily typing tasks.

₨1978

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TrustScore 4.5 | 7,300+ reviews

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Fantastic and great service. Shipping was faster than expected.

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The product exactly matches the description. Very satisfied with my purchase.

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Brand	Perixx
Series	PERIBOARD-512 US B
Item model number	11525
Hardware Platform	Laptop, PC
Operating System	Windows 7, 8, 10, 11
Item Weight	2.28 pounds
Product Dimensions	18.92 x 9.2 x 1.72 inches
Item Dimensions LxWxH	18.92 x 9.2 x 1.72 inches
Color	Black
Power Source	Corded Electric
Voltage	4.25 Volts (DC)
Batteries	1 Unknown batteries required.
Manufacturer	Perixx
Language	English
ASIN	B075GZVD4T
Is Discontinued By Manufacturer	No
Date First Available	September 8, 2017

Perixx PERIBOARD-512B Wired Ergonomic Keyboard - Split Keyboard, Wrist Rest, Natural Typing - Wired USB Connectivity - US English - Black

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