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Head to head · Prices checked Nov 2, 2026

Qwertykeys Neo80CU vs Sikakeyb SK5 Mountain CityPremium Kit vs Budget Entry

Choose the Neo80CU for a premium, feature-rich wireless build, or the SK5 for a basic, budget-friendly entry into custom keyboards.

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Quick verdict

Which one should you get?

Get the

Qwertykeys Neo80CU

Premium Kit

Build quality in the top 5% of 80% boards under $300.

If you want

  • Premium materials including anodized aluminum top case and copper or brass bottom case.
  • Extensive connectivity with tri-mode wireless (Bluetooth, 2.4 GHz) and wired USB-C.
  • Highly customizable with three mounting styles, multiple plate options, and acoustic tuning features.

Rules this board out

  • No numpad.

Get the

Sikakeyb SK5 Mountain City

Budget Entry

Build quality in the bottom 10% of 75% boards under $200.

If you want

  • Significantly more affordable price point.
  • Compact 75% layout saves desk space.
  • Simpler barebones kit for straightforward assembly.

Rules this board out

  • Switches are soldered. Swapping them means soldering.
  • No ISO layout. ISO-DE, UK, and other ISO variants are not offered.
  • No numpad.

Bottom line

Your budget and intended use decisively split these two keyboards. Invest in the Qwertykeys Neo80CU if you want a premium, wireless, and highly tunable keyboard for a permanent desk setup. Choose the Sikakeyb SK5 Mountain City only if your goal is to spend as little as possible on a basic custom keyboard kit for a first build or a secondary location.

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.

Qwertykeys Neo80CU

Sikakeyb SK5 Mountain City

  • Layout size

    80%

    75%

  • Hot-swappable

    Yes

    No

    Switch changes without soldering

  • Case material

    Aluminum, Brass, Copper

    Aluminum, Plastic

  • VIA

    Yes

    No

    GUI remapping without compiling firmware

  • Sound dampening

    Yes

    No

KeebFinder scores

How we score
  • Qwertykeys Neo80CU
  • Sikakeyb SK5 Mountain City
Performance
67
38
Build quality
89
44
Productivity
73
42
Customizability
67
46
Portability
75
58
See every spec side by side

Best for

What will you mostly use it for?

The Qwertykeys Neo80CU is the clear choice for most dedicated use cases, particularly gaming, office work, programming, and content creation, due to its robust feature set and connectivity. It also dominates in modding potential. The Sikakeyb SK5's primary advantage is for travel or as a first, low-cost project where its budget price and smaller size are the main considerations, outweighing the lack of features.

For gaming

Pick the Qwertykeys Neo80CU

  • The Neo80CU has a confirmed 1000 Hz polling rate for wired and 2.4 GHz connections.
  • Its 4.5 kg weight provides exceptional stability during intense use.
  • It supports N-Key Rollover for simultaneous key presses.

Full specs

Qwertykeys Neo80CU vs Sikakeyb SK5 Mountain City specs

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

9 of 20 specs differ

Qwertykeys Neo80CU

Sikakeyb SK5 Mountain City

Typing & switches

Hot-swappable

Yes
No

Mount style

Gasket Mount
—

Sound dampening

Yes
No

Layout

Layout size

80%
75%

Layout standard

ANSI, ISO
ANSI

Ergonomics

Standard
Standard

Display

None
None

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
—

Max polling rate

1,000 Hz
—

Battery

2,200 mAh
—

USB-C

Yes
No

Build & materials

Case material

Aluminum, Brass, Copper
Aluminum, Plastic

Plate material

Aluminum, CarbonFiber, Plastic
—

Weight

4,500 g
—

Dimensions

18 x 356 x 134 mm
—

Typing angle

8°
—

Backlight

None
None

Firmware & software

VIA

Yes
No

N-key rollover

Yes
No

Extras

Released

2026
2022

For EU buyers

ISO layouts by store

Which stores sell ISO-DE, UK, and the other regional layouts.

Qwertykeys Neo80CU

Listed on the product, not split by store: ISO.

Sikakeyb SK5 Mountain City

No ISO layout at the stores we track.

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.

Lowest price across stores, Amazon excluded.

FAQ

Qwertykeys Neo80CU vs Sikakeyb SK5 Mountain City: your questions

The product listing does not confirm hot-swap capability for the SK5. It is listed as a DIY kit/barebones, but the specific PCB type is not detailed. You should assume it may require soldering unless specified by the retailer.

The Neo80CU uses standard USB-C connectivity and Bluetooth, which are compatible with both Mac and Windows computers. The vendor description does not mention specific software or driver requirements for either OS.

The Qwertykeys Neo80CU is exceptionally heavy at 4500 grams (4.5 kg) due to its aluminum and copper/brass construction. The weight for the Sikakeyb SK5 is not provided in the available specifications.

Yes, the Qwertykeys Neo80CU supports a 2.4 GHz wireless connection with a 1000 Hz polling rate, which is suitable for gaming. It also has a Bluetooth mode, but the polling rate for Bluetooth is listed as 125 Hz, which is better suited for general typing.

According to the vendor, the Neo80CU kit includes the case with your chosen PCB and plate, Poron case foam, silicone gaskets, top mount screws, positioning silicone, rubber feet, backup screws, two 2200mAh batteries (for tri-mode), a carrying case, a keycap and switch puller, a screwdriver, clip-in stabilizers, and a USB-C cable.

The SK5 is an 84-key 75% layout keyboard. You will need a keycap set that supports a 75% layout, which includes a compact modifier row and unique right-side key sizes. The listing does not specify if it uses a standard 75% key layout.

The Neo80CU does not have per-key RGB lighting. It features a decorative 'Star Ring Accent Light' on the front of the case for aesthetic purposes, as stated in the vendor description.

The Sikakeyb SK5 is a more budget-friendly option for a first build, but details on its assembly are scarce. The Neo80CU is a complex, premium kit that may be overwhelming for a first-timer, but it includes comprehensive accessories and supports hot-swap, which is easier than soldering.

The Neo80CU's hot-swappable PCB supports standard 3-pin or 5-pin mechanical switches. The specific switch compatibility (e.g., MX-style, Kailh) is standard for hot-swap sockets, but the vendor recommends checking the PCB details for your specific kit variant.

Yes, the Neo80CU's tri-mode version comes with two pre-installed 2200mAh batteries. The vendor description mentions these are installed, implying they are accessible and likely replaceable by opening the case.

The mounting style for the Sikakeyb SK5 Mountain City is not specified in the provided product metadata or vendor description.

Yes, the Neo80CU is designed for modularity. The vendor lists multiple plate options (aluminum, carbon fiber, plastic, etc.) and the kit includes tools, allowing you to disassemble the keyboard and swap plates to change the typing sound and feel.

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