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Head to head · Prices checked Nov 2, 2026

Keychron K2 HE vs Neo One of Zero Si75 HEWireless vs High-Polling Gaming

Choose the Keychron K2 HE for wireless flexibility and premium materials, or the Neo Si75 HE for its higher wired polling rate and unique gasket-mounted design.

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Quick verdict

Which one should you get?

Get the

Keychron K2 HE

Wireless

Build quality in the top 5% of 75% boards under $150.

If you want

  • Tri-mode connectivity (Bluetooth, 2.4GHz, wired) for maximum flexibility.
  • Premium construction with aluminum and wood case options.
  • Extensive firmware support via QMK and VIA for deep customization.

Rules this board out

  • Magnetic switches only. Standard MX switches will not fit.
  • North-facing LEDs. Cherry-profile keycaps can hit the switch housing.

Get the

Neo One of Zero Si75 HE

High-Polling Gaming

Build quality in the top 45% of 75% boards under $150.

If you want

  • Higher 8000 Hz polling rate for potentially lower latency in wired mode.
  • Unique gasket mount design with colorful, interchangeable silicone modules for customization.
  • Includes a frosted translucent polycarbonate case for a distinctive look.

Rules this board out

  • Magnetic switches only. Standard MX switches will not fit.
  • South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
  • No ISO layout. ISO-DE, UK, and other ISO variants are not offered.

Bottom line

Your primary need dictates the choice. If you require wireless functionality for a clean desk or multi-device workflow, and value premium materials and extensive customization via QMK/VIA, the Keychron K2 HE is the clear selection. Opt for the Neo One of Zero Si75 HE if you are a dedicated wired gamer seeking the highest polling rate, prefer the feel of a gasket mount, and enjoy its unique, customizable translucent design.

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.

Keychron K2 HE

Neo One of Zero Si75 HE

  • Connection

    Bluetooth, 2.4 GHz, Wired

    Wired

    Wireless for several devices and wired for lower latency

  • Max polling rate

    1,000 Hz

    8,000 Hz

    Higher polling helps competitive FPS and does nothing for typing

  • Case material

    ABS, Aluminum, Resin, Wood

    ABS, Polycarbonate

  • Switch options

    Linear, Magnetic

    Magnetic

  • Mount style

    Plate Mount, Tray Mount

    Gasket Mount

KeebFinder scores

How we score
  • Keychron K2 HE
  • Neo One of Zero Si75 HE
Performance
93
95
Build quality
91
70
Productivity
97
91
Customizability
98
74
Portability
81
65

What they share

  • Layout size: 75%
  • Hall effect (magnetic)
  • Rapid trigger
  • Hot-swappable
  • Knob
  • Sound dampening
See every spec side by side

Best for

What will you mostly use it for?

The Keychron K2 HE is the more versatile choice, winning in office, programming, travel, and modding scenarios due to its wireless connectivity, layout support, and firmware customization. The Neo Si75 HE takes the lead specifically for wired gaming due to its higher polling rate. For content creation, both offer useful features like a control knob, making it a tie dependent on whether you prioritize a wireless or translucent aesthetic.

For gaming

Pick the Neo One of Zero Si75 HE

  • The Neo Si75 HE has a higher 8000 Hz polling rate compared to the K2 HE's 1000 Hz.
  • Its gasket mount design may offer a softer, more cushioned typing feel preferred by some gamers.
  • Both keyboards feature magnetic switches with rapid trigger and adjustable actuation points.

Full specs

Keychron K2 HE vs Neo One of Zero Si75 HE specs

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

13 of 29 specs differ

Keychron K2 HE

Neo One of Zero Si75 HE

Typing & switches

Switch options

Linear, Magnetic
Magnetic

Hall effect (magnetic)

Yes
Yes

Rapid trigger

Yes
Yes

Hot-swappable

Yes
Yes

Mount style

Plate Mount, Tray Mount
Gasket Mount

Sound dampening

Yes
Yes

Screw-in stabilizers

Yes
Yes

Layout

Layout size

75%
75%

Layout standard

ANSI, ISO, ISO-CH, ISO-DE, ISO-ES, ISO-FR, ISO-Nordic, ISO-UK, JIS
ANSI

Ergonomics

Standard
Standard

Knob

Yes
Yes

Display

None
None

Media keys

Yes
No

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
Wired

Max polling rate

1,000 Hz
8,000 HzBetter

Battery

4,000 mAh
Wired only

USB-C

Yes
Yes

Build & materials

Case material

ABS, Aluminum, Resin, Wood
ABS, Polycarbonate

Plate material

Aluminum
Aluminum

Keycaps

ABS, PBT, PC
PBT

Weight

1,743 g
—

Dimensions

41 x 127 x 321 mm
—

Typing angle

12°, 4°, 5°
—

Backlight

RGB, north-facing
RGB, south-facing

Firmware & software

QMK

Yes
No

VIA

Yes
No

N-key rollover

Yes
No

Mac & Windows

Yes
Yes

Extras

Released

2024
2026

For EU buyers

ISO layouts by store

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

Keychron K2 HE

  • Keychron

    ISO-DE, ISO-UK, ISO-Nordic, ISO-CH

    In stockShips to you

  • Input Gear

    ISO-DE

    Out of stockShips to you

  • Keychron (DE)

    ISO-DE, ISO-UK, ISO-FR, ISO-ES, ISO-CH

    In stockDoes not ship to you

Neo One of Zero Si75 HE

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

Keychron K2 HE vs Neo One of Zero Si75 HE: your questions

The Keychron K2 HE is designed for wireless use, featuring both Bluetooth 5.2 and a 2.4 GHz connection with a 1000 Hz polling rate. The Neo Si75 HE is a wired-only keyboard and does not offer any wireless connectivity.

Yes. The Neo Si75 HE has a maximum polling rate of 8000 Hz in wired mode. The Keychron K2 HE has a polling rate of 1000 Hz in both its wired and 2.4 GHz wireless modes.

Yes, both keyboards should be compatible with Cherry profile keycaps. The Keychron K2 HE Standard Version comes with Cherry profile keycaps, and the Neo Si75 HE also uses Cherry profile PBT keycaps. The K2 HE Special Edition uses OSA profile keycaps instead.

The Keychron K2 HE offers more extensive firmware customization, as it supports the open-source QMK and VIA platforms. The Neo Si75 HE uses the One of Zero Web Launcher (powered by Keychron) for remapping and adjustments, but QMK/VIA support is not stated.

The Keychron K2 HE uses a tray mount and plate mount design. The Neo One of Zero Si75 HE uses a gasket mount design, which typically provides a softer, more cushioned typing feel.

Both keyboards have hot-swappable PCBs for magnetic switches. However, the Keychron K2 HE is listed as compatible exclusively with Gateron double-rail magnetic switches. The Neo Si75 HE's PCB is compatible with magnetic switches that have a downward-facing magnetic north pole.

The Neo Si75 HE includes a variety of accessories like 12 colorful keycaps, two pairs of silicone adjustment feet, a USB-C cable, an adapter, and tools. The Keychron K2 HE's listed accessories, such as palm rests and coiled cables, are typically sold separately.

Yes, both the Keychron K2 HE and the Neo Si75 HE are listed as compatible with macOS and Windows systems. The K2 HE includes dedicated keycaps and a toggle switch for switching between operating systems.

The Keychron K2 HE features cases made from aluminum, with Special Edition versions adding wood accents. The Neo Si75 HE uses a frosted translucent ABS and polycarbonate case construction.

The Keychron K2 HE includes multiple internal foam layers such as 3.5mm EVA foam, EPDM foam, a silicone pad, and PET film. The Neo Si75 HE includes a porous foam layer between the PCB and plate and a PU foam layer with a rigid backing film under the PCB.

This is subjective. The Keychron K2 HE's tray mount with internal foams aims for a solid, dampened sound. The Neo Si75 HE's gasket mount is designed to offer a softer, more flexible typing experience. The choice depends on your preference for a sturdier or more cushioned feel.

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