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Compare Keychron K2 HE vs Neo One of Zero Si75 HE Differences Side by Side

This comparison is for buyers deciding between two 75% hall effect keyboards with distinct priorities. The Keychron K2 HE offers tri-mode wireless connectivity and a premium metal and wood build, while the Neo Si75 HE focuses on a high 8000Hz wired polling rate and a customizable gasket-mounted design. The decision hinges on whether you value wireless freedom and material quality or maximum wired performance and a specific typing feel.

99
Keychron K2 HE Wireless Magnetic Switch Custom Keyboard
80
ONEofZERO Si75 HE Hotswap RGB Keyboard

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4.6 (68)
0.0 (0)
  • Released in 2024
  • Has Linear, Magnetic switch options
  • Built with the ANSI, ISO, ISO-UK, ISO-DE, ISO-ES, ISO-FR, ISO-CH, ISO-Nordic, JIS layout standard
  • Provides dedicated media keys
  • Supports QMK firmware
  • Supports VIA configuration
  • Features N-key rollover
  • Uses a Tray Mount mounting style
  • Supports Bluetooth, 2.4 GHz, Wired, Wireless connectivity
  • Runs at a 1000 Hz polling rate
  • Equipped with a 4000 mAh battery
  • Weighs about 1743 g
  • Sized at 30 x 127 x 41 mm
  • Made with a Aluminum, Wood, ABS, Resin case
  • Features PBT, ABS, PC keycaps
  • Offers Yes, Rgb, North-face, Rgb North-face, White, White North-face RGB lighting
  • Released in 2026
  • Has Magnetic switch options
  • Built with the ANSI layout standard
  • Uses a Gasket Mount mounting style
  • Supports Wired, Wired only connectivity
  • Runs at a 8000 Hz polling rate
  • Made with a ABS, Polycarbonate case
  • Features PBT keycaps
  • Offers Yes, Rgb, South-face, Rgb South-face RGB lighting
Scores
  • Performance: 93.3
  • Build Quality: 90.7
  • Productivity: 97
  • Customizability: 99.5
  • Portability: 81.4
Scores
  • Performance: 95.3
  • Build Quality: 69.6
  • Productivity: 90.8
  • Customizability: 74.8
  • Portability: 65.2
Name
Keychron K2 HE
Name
Neo One of Zero Si75 HE
Release year
2024
Release year
2026
Switch Options
Linear, Magnetic
Switch Options
Magnetic
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
75%
Layout Size
75%
Layout Standard
ANSI, ISO, ISO-UK, ISO-DE, ISO-ES, ISO-FR, ISO-CH, ISO-Nordic, JIS
Layout Standard
ANSI
Layout Ergonomics
Normal
Layout Ergonomics
Normal
Knob Support
 
Knob Support
 
Display Support
 
Display Support
 
Mac/Win Support
 
Mac/Win Support
 
Multi-Media Keys
 
Multi-Media Keys
 
USB-C
 
USB-C
 
USB passthrough
 
USB passthrough
 
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Connection
Wired, Wired only
Polling Rate
1000 Hz
Polling Rate
8000 Hz
Battery capacity
4000 mAh
Battery capacity
-
Hall Effect Support
 
Hall Effect Support
 
QMK Support
 
QMK Support
 
VIA Support
 
VIA Support
 
VIAL Support
 
VIAL Support
 
N-Key Rollover
 
N-Key Rollover
 
Rapid Trigger
 
Rapid Trigger
 
Mount Style
Tray Mount
Mount Style
Gasket Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb, North-face, White
Backlight
 
Rgb, South-face
Case Colors
Case Colors
Case Material
Aluminum, Wood, ABS, Resin
Case Material
ABS, Polycarbonate
Keycaps Material
PBT, ABS, PC
Keycaps Material
PBT
Dimensions
30 x 127 x 41 mm
Dimensions
-
Weight
1743g
Weight
-
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Pros and Trade-offs

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.

Keychron K2 HE

  • +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.
  • +Includes multiple sound-dampening foams (EVA, EPDM, silicone) for a tuned acoustic experience.
  • +Wide international layout support (ANSI and multiple ISO variants).
  • −Higher polling rate is limited to 1000 Hz, not the highest available for wired gaming.
  • −Compatible only with specific Gateron double-rail magnetic switches, limiting hot-swap options.
  • −The Special Edition uses OSA profile keycaps which some users may find less preferable than Cherry profile.

Neo One of Zero Si75 HE

  • +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.
  • +Comes with 12 additional colorful keycaps and multiple silicone feet for adjustment.
  • −Wired-only connectivity, lacking wireless options.
  • −Limited to ANSI layout, with no ISO variants mentioned.
  • −Case is made of ABS and polycarbonate, which may feel less premium than metal alternatives.
  • −Lacks stated support for QMK or VIA firmware, relying on a proprietary web launcher.

Which Keyboard Is Better for Your Needs?

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.

GamingNeo 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.
OfficeKeychron K2 HE
  • •The Keychron K2 HE offers Bluetooth and 2.4 GHz wireless connectivity for easy device switching.
  • •It includes Mac and Windows keycaps and a system toggle for seamless cross-platform use.
  • •A 4000mAh battery provides extended wireless use away from a desk.
ProgrammingKeychron K2 HE
  • •The K2 HE supports extensive layout options including multiple ISO layouts, beneficial for international programmers.
  • •It features QMK and VIA support for deep, open-source firmware customization.
  • •Wireless connectivity allows for a cleaner, cable-free desk setup.
TravelKeychron K2 HE
  • •The K2 HE's wireless functionality eliminates the need to carry or connect a cable.
  • •Its aluminum and wood construction, while premium, is listed with a specific weight, whereas the Si75 HE's portability is less emphasized.
  • •Bluetooth allows for easy pairing with laptops and tablets on the go.
ModdingKeychron K2 HE
  • •The K2 HE explicitly supports QMK and VIA for extensive firmware remapping and macro creation.
  • •It features a hot-swappable PCB and comes in a DIY kit/barebones option according to its metadata.
  • •The vendor page details multiple internal foam layers (EVA, EPDM, silicone) for acoustic customization.
Content CreationTie
  • •Both keyboards have a knob for media control and programmable keys for shortcuts.
  • •The K2 HE's wireless design offers a cleaner setup for video, while the Si75 HE's translucent case offers a distinct aesthetic.
  • •Each supports magnetic switches with dynamic keystrokes for assigning multiple actions per key.

Frequently Asked Questions (FAQ)

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