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Head to head · Prices checked Nov 11, 2026

NIUNIU Roly poly 40 R3 vs KEEBD Reviung 41

Choose the NIUNIU for aluminum construction and optional wireless modes, or the KEEBD for a tactile-switch kit with acrylic parts.

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Quick verdict

Which one should you get?

Get the

NIUNIU Roly poly 40 R3

Build quality in the top 40% of 40% boards under $150.

If you want

  • Aluminum case with an FR4 plate.
  • Linear switches and hot-swap support.
  • Available in wired, Bluetooth, and Bluetooth plus 2.4 GHz configurations.

Get the

KEEBD Reviung 41

Screw-in stabilizers

Build quality in the bottom 10% of 40% boards under $150.

If you want

  • Tactile switches and hot-swap support.
  • Kit includes an FR4 switch plate, acrylic bottom plate, and acrylic controller cover.
  • Listing specifies RGB support.

Bottom line

Choose the NIUNIU if you want an aluminum case, VIAL support, or the option of Bluetooth and 2.4 GHz connectivity. Choose the KEEBD if tactile switches and acrylic kit parts better suit your build. Before buying the KEEBD, account for its listed requirements: a Pro Micro controller, MX switches, and MX keycaps.

What actually differs

The differences that matter

Skip the 40-row spec sheet. These are the specs that change how each board feels, sounds, and fits your desk.

NIUNIU Roly poly 40 R3

KEEBD Reviung 41

  • Case material

    Aluminum

    Acrylic, Plastic

  • Switch options

    Linear

    Tactile

  • Plate material

    FR4

    FR4, Plastic

  • Screw-in stabilizers

    No

    Yes

    Easier to tune than the plate-mount stabs you get prebuilt

  • Backlight

    None

    RGB

    RGB for looks and low light rather than speed

KeebFinder scores

How we score
  • NIUNIU Roly poly 40 R3
  • KEEBD Reviung 41
Performance
47
42
Build quality
74
44
Productivity
51
49
Customizability
70
74
Portability
80
64

What they share

  • Layout size: 40%
  • Hot-swappable
See every spec side by side

Best for

What will you mostly use it for?

The NIUNIU has the clearer edge for buyers who want wireless configuration choices, linear switches, or VIAL support. The KEEBD offers a tactile-switch alternative with acrylic kit components. Office and content creation use depend more on individual layout and switch preferences than on a decisive feature advantage. For modding, both provide hot-swap support, but their included features and materials differ.

For gaming

Pick the NIUNIU Roly poly 40 R3

  • The NIUNIU uses linear switches, while the KEEBD is listed with tactile switches.
  • The NIUNIU offers wired, Bluetooth, and 2.4 GHz configurations, although the selected mode determines which connections are available.

Full specs

NIUNIU Roly poly 40 R3 vs KEEBD Reviung 41 specs

Every tracked spec, side by side. Rows marked with a dot differ between the boards.

7 of 15 specs differ

NIUNIU Roly poly 40 R3

KEEBD Reviung 41

Typing & switches

Switch options

Linear
Tactile

Hot-swappable

Yes
Yes

Mount style

Top Mount
—

Screw-in stabilizers

No
Yes

Layout

Layout size

40%
40%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Display

None
None

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
—

Build & materials

Case material

Aluminum
Acrylic, Plastic

Plate material

FR4
FR4, Plastic

Typing angle

9°
—

Backlight

None
RGB

Firmware & software

VIAL

Yes
No

Extras

Released

2025
2021

Where to buy

Compare prices

Live prices from the stores we track, cheapest in-stock offer first.

Prices in USD are converted to your currency and can change at any time. KeebFinder may earn a commission when you buy through these links, at no extra cost to you.

FAQ

NIUNIU Roly poly 40 R3 vs KEEBD Reviung 41: your questions

The NIUNIU has an aluminum case, linear switches, VIAL support, and optional wireless configurations. The KEEBD has tactile switches and an acrylic bottom plate and controller cover.

The vendor lists wired-only, dual-mode, and tri-mode configurations for the NIUNIU. Bluetooth is listed for dual-mode, while tri-mode adds 2.4 GHz; batteries are included for those wireless models.

The KEEBD product listing does not specify Bluetooth connectivity. Its listed kit contents include a PCB, FR4 switch plate, and acrylic parts.

Yes, both are listed as hot-swappable. The NIUNIU vendor description specifies a hot-swappable PCB, while the KEEBD kit includes Kailh hot-swap sockets.

The NIUNIU is listed with linear switches, while the KEEBD is listed with tactile switches. Both are hot-swappable kits, so the switch choice can be changed.

Yes, VIAL support is listed as a feature of the NIUNIU. The KEEBD listing does not name VIAL support.

The listing includes an FR4 switch plate, Reviung 41 PCB, acrylic bottom plate and controller cover, diodes, Kailh hot-swap sockets, screws, standoffs, and rubber feet. It says a Pro Micro controller, MX switches, and MX keycaps are required to complete the build.

The product metadata lists RGB for the KEEBD, while the vendor describes WS2812B RGB LEDs as optional items. The kit description says the LEDs are not included among the standard kit contents.

The NIUNIU Roly poly 40 R3 is listed with an aluminum case, and its vendor description names an aluminum housing. The KEEBD kit listing specifies acrylic plates and an acrylic controller cover.

Both are listed as 40% ANSI keyboards. The KEEBD vendor describes the Reviung 41 as a 41-key column-staggered keyboard.

The NIUNIU is the more clearly specified choice for wireless use because it offers Bluetooth and 2.4 GHz configurations, as well as a wired option. The KEEBD listing does not specify wireless connectivity.

No compatibility rules are listed for either the NIUNIU or the KEEBD. The KEEBD vendor does specify that a Pro Micro controller, MX switches, and MX keycaps are required to complete its kit.

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