NZXT Function 2 Keyboard Review: Gaming Specs Explained

Why Keyboard Specs Matter for Gamers

If your keyboard feels off, it can ruin an otherwise perfect gaming setup—especially since it’s your most-touched peripheral besides the mouse. But specs like "optical switches" or "actuation force" sound like jargon. After analyzing NZXT’s Function 2 keyboard, I’ll demystify these terms so you can choose wisely, whether you’re a casual user or an enthusiast. We’ll cover what each spec means, why NZXT’s design choices matter, and how they impact real-world use.

Key Terms Every Buyer Should Know

Actuation Force (Grams): How hard you press a key to register a click. Lighter (40g) reduces fatigue; heavier suits aggressive typists.
Travel Distance (mm): How far a key moves before activating. Shorter travel (1mm) enables faster responses.
Bottom-Out Sound: The "clack" when keys hit the base. Foam layers mute this—a major upgrade in the Function 2.

Keyboard Switches: Optical vs. Mechanical

How Switches Impact Typing and Gaming

Optical switches (like NZXT’s) use infrared beams broken by a keypress. Mechanical switches rely on physical springs. Optical offers two critical advantages:

Adjustable actuation (1mm or 1.5mm) for speed or precision.
Near-zero "bounce" (accidental double-presses), common in worn mechanical switches.
As the video shows, replacing switches is simple with the included puller. But note: Optical switch failures require full PCB replacement, while mechanical ones can be swapped individually.

Why 40g is the Sweet Spot

Most keyboards, including the Function 2, use 40g switches. Industry data shows this balances speed and comfort—heavy typists avoid fatigue, while light pressers minimize errors. For comparison:

<40g: Risk of accidental presses (e.g., 30g).
>50g: Tiring for long sessions (e.g., 80g).

Build Quality and Real-World Performance

Sound Damping and Materials

The Function 2’s "double foam layer" absorbs bottom-out noise—a trend from enthusiast "tape mods." Compare the sound:

Without foam: Hollow, clacky echoes.
With foam: Muted, solid thuds.
PBT keycaps also resist shine from skin oils longer than cheaper ABS plastic. NZXT’s textured caps add grip, crucial for sweaty gaming sessions.

Polling Rates: 1,000Hz vs. 8,000Hz

Polling rate is how often the keyboard checks for inputs. Mechanical boards typically use 1,000Hz (checks 1,000x/second). The Function 2’s optical design enables 8,000Hz:

Benefit: Near-zero input lag for competitive gaming.
Drawback: Requires more system resources (minimal on modern PCs).

Beyond the Basics: Customization and Value

Keycap and Switch Customization

The Function 2 uses Cherry MX-compatible mounts, letting you swap keycaps. "Shine-through" legends let RGB backlighting glow through letters—ideal for dark rooms. Double-shot molding ensures legends won’t fade, addressing a common wear issue in budget keyboards.

NZXT’s Competitive Pricing

At $129 (TKL) or $139 (full-size), the Function 2 undercuts rivals like Corsair or Razer ($200+). For the price, you get:

Per-key RGB (not just zones)
Volume knob and shortcut buttons
USB-C detachable cable (supports custom cables)

Actionable Checklist for Your Next Keyboard

Test switch types: Opt for optical if you hate input lag.
Check keycap material: PBT > ABS for longevity.
Verify polling rate: 1,000Hz is standard; 8,000Hz is future-proof.
Prioritize sound dampening: Foam layers reduce fatigue.
Ensure hot-swap sockets: For easy switch replacements.

Recommended Tools for Enthusiasts

Switch Pullers: $5-10 on Amazon (essential for modding).
Custom Keycaps: Brands like Drop or Keychron offer PBT sets ($30+).
Sound-Testing Apps: Audacity (free) to compare keyboard acoustics.

Final Verdict

The NZXT Function 2 succeeds by merging enthusiast features—hot-swap sockets, foam dampening, adjustable optical switches—into a competitively priced package. For gamers tired of spec confusion, it’s a crash course in smart peripheral design.

When testing keyboards, which spec matters most to you—switch type, build noise, or customization? Share your dealbreakers below!