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Compare Niz S104 EC vs X99 Differences Side by Side

This comparison is for users deciding between two similar Niz electro-capacitive keyboards. The choice is difficult because both share identical core technology, including 35g capacitive switches, PBT keycaps, programmability, and a similar price point. The decision hinges entirely on your preference for a traditional full-size layout versus a space-saving 96% form factor, as other specifications are nearly identical.

NIZ S104 EC Keyboard
NIZ X99 EC Keyboard

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  • Available in a 100% layout
  • Weighs about 1160 g
  • Sized at 25 x 136 x 446 mm
  • Available in a 96% layout
  • Weighs about 1249 g
  • Sized at 25 x 135 x 380 mm
Scores
  • Performance: 39.9
  • Build Quality: 37.7
  • Productivity: 48.4
  • Customizability: 40.3
  • Portability: 41.8
Scores
  • Performance: 39.9
  • Build Quality: 37.9
  • Productivity: 48.5
  • Customizability: 40.4
  • Portability: 41.9
Name
Niz S104 EC
Name
Niz X99
Release year
2023
Release year
2023
Switch Options
-
Switch Options
-
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
100%
Layout Size
96%
Layout Standard
ANSI
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
Wired, Wired only
Connection
Wired, Wired only
Polling Rate
-
Polling Rate
-
Battery capacity
-
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
-
Mount Style
-
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Backlight
 
Case Colors
Case Colors
Case Material
Plastic
Case Material
Plastic
Keycaps Material
PBT
Keycaps Material
PBT
Dimensions
25 x 136 x 446 mm
Dimensions
25 x 135 x 380 mm
Weight
1160g
Weight
1249g
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Pros and Trade-offs

Select the Niz S104 EC if you regularly use a numpad for data entry, accounting, or content creation and have the desk space for a full-size keyboard. Opt for the Niz X99 if you want to maximize desk real estate with a more compact form that still offers nearly all the keys of a full-size board, including integrated numpad functions. Beyond layout, their performance and features are virtually identical.

Niz S104 EC

  • +Full 104-key layout includes a dedicated numpad.
  • +Features freely programmable keys and macro compatibility.
  • +Uses durable PBT two-colour keycaps.
  • +Includes a two-stage support leg structure and anti-skid pad.
  • +Comes with 10g springs for optional switch weighting adjustment.
  • −Larger footprint (446mm length) requires more desk space.
  • −Wired-only connectivity limits placement flexibility.
  • −No backlighting of any kind.

Niz X99

  • +More compact 96% layout (380mm length) saves desk space.
  • +Retains numpad functionality in a condensed form.
  • +Features freely programmable keys and macro compatibility.
  • +Uses durable PBT two-colour keycaps.
  • +Includes a two-stage support leg structure and anti-skid pad.
  • −Condensed layout may have a learning curve for numpad and nav key placement.
  • −Wired-only connectivity limits placement flexibility.
  • −No backlighting of any kind.

Which Keyboard Is Better for Your Needs?

The Niz S104 wins for office work and content creation where a numpad is essential. The Niz X99 is the better choice for travel or small desks due to its more compact 96% layout. For gaming, programming, and modding, the keyboards are effectively tied, sharing identical switch technology, programmability, and construction. Your desk space and need for a numpad are the primary deciding factors.

GamingTie
  • •Both use the same 35g electro-capacitive switches.
  • •Both are wired-only with USB-C connectivity.
  • •Neither offers RGB lighting, focusing on a clean aesthetic.
OfficeNiz S104 EC
  • •The S104's 100% layout includes a dedicated numpad for data entry.
  • •Full-size layout may be more familiar in shared office environments.
  • •Both share the same quiet, gentle 35g switch feel.
ProgrammingTie
  • •Both keyboards are described as freely programmable and macro-compatible.
  • •Both feature PBT keycaps for durability during long typing sessions.
  • •Switch type and feel are identical between models.
TravelNiz X99
  • •The X99 has a shorter length (380mm vs 446mm) due to its 96% layout.
  • •It is slightly more compact while retaining most keys, including nav cluster.
  • •Both are similar in weight and wired-only, limiting true portability.
ModdingTie
  • •Both are pre-built with no mention of hot-swap sockets in the descriptions.
  • •Both share the same PBT keycap material and plastic case construction.
  • •The vendor description mentions adding 10g springs to the switches, indicating some spring swap capability for both.
Content CreationNiz S104 EC
  • •The full-size S104 layout provides dedicated media keys and a numpad for shortcuts and numerical input.
  • •The separate nav cluster can be beneficial for timeline scrubbing.
  • •The vendor states both are macro-compatible, a useful feature for assigning complex actions.

Frequently Asked Questions (FAQ)

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