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ATTACK SHARK X820 ULTRA – Full Specification
attack-shark Keyboard SKU: X820Ultra

ATTACK SHARK X820 ULTRA – Full Specification

Available Official 8.6/10Excellent
  • Switches Mechanical (Hot-swappable)
  • Backlight Per-key RGB
  • Battery Life 60–80 hours (RGB on)
  • Mode Bluetooth + 2.4GHz
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ATTACK SHARK X820 Ultra — Manual Keyboard Buying Guide

ATTACK SHARK X820 Ultra is a 75–80% keyboard built for Gaming, Productivity. Its strongest listed points are Mechanical (Hot-swappable), 75–80%, Bluetooth + 2.4GHz / USB-C. The main trade-off is the need to confirm the exact version, layout and switch option before buying. Use this page as a buying guide based on the supplied specifications; it does not claim direct physical testing.

Pros & Cons

Pros
  • Tri-mode wireless connectivity
  • Premium gasket-mount typing feel
  • Long battery life for wireless use
  • Wide OS and layout compatibility
Cons
  • Wireless polling rate lower than wired
  • Heavier than wired esports keyboards
  • Proprietary software layer
  • Exact layout details may vary by region

Our Rating Scores are set by our editors from the manufacturer-published specifications, not from hands-on testing.

8.6
/ 10 Excellent
Design 9
SWITCH 8
PERFORMANCE 8
BATTERY 9
Connectivity 9

Specifications

Genral Info

Brand ATTACK SHARK
Model Name X820Ultra
Series X-Series
Type Mechanical (Tri-Mode)
Layout 75–80%
Release Year 2025
Use Case Gaming, Productivity

DESIGN & BUILD

Frame Material Aluminum + plastic (gasket structure)
Plate Material PC or PP
Keycap Material PBT
Color Options Multiple
Dimensions (L × W × H) Compact layout
Weight 900–1100 g
Form Factor Gasket-mount compact
Finish Premium finish

SWITCH & TYPING EXPERIENCE

Switch Type Mechanical (Hot-swappable)
Switch Options Linear / Clicky / Tactile
Mount Type Gasket mount
Stabilizers Pre-lubed screw-in
Typing Angle Adjustable feet
Key Rollover Full NKRO (wired)
Actuation Force 45 g
Key Travel 3.5–4.0 mm
Typing Feel Soft cushioned gasket feel

PERFORMANCE

Response Time (Bluetooth) Low latency tri-mode
Response Time (Bluetooth) Low latency tri-mode
Anti-Ghosting 100%
Input Lag Negligible
Latency Mode 1000 Hz wired / 125 Hz wireless

RGB & LIGHTING

Backlight Type Per-key RGB
LED Orientation South-facing
Lighting Effects Multiple modes
Custom Effects Software supported
Brightness Levels Adjustable
Control Fn + software

SOFTWARE & CUSTOMIZATION

Firmware Proprietary + VIA/QMK compatible
Key Remapping Fully programmable
Macro Support Yes
Profile Storage 3 onboard profiles
Firmware Update USB
Hotkey Shortcuts Macros, RGB, media

SOUND & COMFORT

Acoustic Dampening Foam + silicone layers
Typing Sound Profile Thocky gasket sound
Gasket Mount Yes
Noise Reduction Multi-layer dampening
Wrist Rest Optional
Tilt Feet Adjustable feet

Support and compatibility

Software Support Windows, macOS, Linux
Plug-and-Play Yes
Layout Options Win / Mac keycaps

BATTERY & CONNECTIVITY

Battery Capacity 4000 mAh
Battery Type Lithium
Battery Life (No RGB) 180–240 hours
Battery Life (RGB On) 60–80 hours (RGB on)
Charging Port USB Type-C
Charge Time ~3 hours
Wireless Mode Bluetooth + 2.4GHz
Wired Mode USB-C
Multi-Device Pairing 3 devices
Switch Between Devices Fn shortcuts
Polling Rate (Wired) 1000 Hz
Polling Rate (Wireless) 125 Hz

⚡ Real-World Performance Analysis

Wired Polling
1000 Hz
Wired mode delivers the most consistent response of the available connection options.
Wireless Polling
125 Hz
Wireless mode is convenient for switching between devices - worth checking real-world latency if competitive gaming is the priority.
Wireless Mode
Bluetooth + 2.4GHz
Wireless mode is convenient for switching between devices - worth checking real-world latency if competitive gaming is the priority.
Wired Mode
USB-C
Wired mode delivers the most consistent response of the available connection options.
Typing Response

ATTACK SHARK X820 Ultra should be judged by its Mechanical (Hot-swappable) feel, layout comfort and stabilizer/keycap setup. Listed typing feel: Soft cushioned gasket feel. Listed actuation detail: 45 g. This is spec-based guidance, not a direct physical test claim.

Latency Notes

For latency-sensitive use, rely only on the listed wired or 2.4 GHz information and avoid presenting Bluetooth or polling numbers as tested performance unless measured.

Wireless Behavior

Use wireless for convenience and device switching; verify latency if gaming matters.

Daily Use

For daily use, judge ATTACK SHARK X820 Ultra by layout comfort, switch feel, OS support and the keys you actually need. Specs help shortlist the keyboard, but comfort depends on desk setup and typing preference.

📐 Layout Guide — Is This the Right Size For You?

Layout75–80%
KeysNo dedicated number pad
Best UseGaming, writing and productivity

TKL layout keeps arrows, function row and navigation keys but removes the number pad. It is a balanced size for gaming and work.

Good fit if

  • You want more mouse room than a full-size keyboard.
  • You still want arrows and navigation keys.
  • You do not need a number pad every day.

Consider another size if

  • You rely on spreadsheet number entry.
  • You want the smallest possible keyboard.
  • You need a dedicated numpad for work.

🧩 Switch & Build Quality — What You're Actually Getting

Switch
Mechanical (Hot-swappable)
Mechanical switch feel varies by the exact variant, spring weight and factory tuning. Check the exact switch variant before buying.
Actuation
45 g
This reflects the manufacturer's published specification.
Key Travel
3.5–4.0 mm
Travel and typing feel can shift depending on the switch version fitted.
Mount
Gasket mount
Frame
Aluminum + plastic (gasket structure)
Plate
PC or PP
Keycaps
PBT
Stabilizers
Pre-lubed screw-in

ATTACK SHARK X820 Ultra uses Mechanical (Hot-swappable). Final sound and feel depend on the exact switch option, keycaps, stabilizers and case construction. Listed build details include frame/body: Aluminum + plastic (gasket structure); plate: PC or PP; keycaps: PBT; stabilizers: Pre-lubed screw-in; sound profile: Thocky gasket sound.

🎮 Gaming Use Cases — How Does It Perform?

🎯FPS / Competitive Aim
Strong on paper

For FPS games, use the lowest-latency connection mode listed for this keyboard. Layout comfort and desk space matter more than marketing terms.

🧙MOBA / RPG Shortcuts
Good

For MOBA and RPG games, this keyboard should work well if the layout gives you enough dedicated keys or easy layers for shortcuts.

🕹️Casual Gaming
Good

For casual gaming, the main factors are comfort, switch feel and connection stability rather than maximum spec numbers.

🏆Competitive Notes
Verify setup

For competitive gaming, wired or 2.4 GHz mode is the safer choice over Bluetooth when every millisecond matters.

👤 Who Should Buy This Keyboard?

Buy if

  • You want a 75–80% keyboard for Gaming, Productivity.
  • You like the listed Mechanical (Hot-swappable) setup.
  • You are willing to verify the exact regional/layout version before buying.
  • You want wireless convenience along with the listed connection modes.
  • You plan to use the listed customization/software support: Proprietary + VIA/QMK compatible.

Skip if

  • You need the cheapest possible basic keyboard.
  • The listed layout does not include keys you use every day.
  • Switch feel, exact layout and warranty terms matter to you and can't be confirmed from photos alone.

🛒 Practical Buying Advice

Before Buying

Before buying ATTACK SHARK X820 Ultra, confirm the exact layout, switch version, regional key legends, included accessories and warranty. Keyboard names can have multiple variants.

Value Check

ATTACK SHARK X820 Ultra gives the most value if you will actually use its 75–80% layout, Mechanical (Hot-swappable) setup and listed connection/software features. If you only need basic typing, a simpler keyboard may be better value.

Best Configuration

Choose the switch and layout version that fits your typing style. For gaming, prioritize wired or verified 2.4 GHz mode if available; for work, prioritize comfort and OS support.

What to Verify

Layout: 75–80%
Switch: Mechanical (Hot-swappable)
Connectivity: Bluetooth + 2.4GHz / USB-C
Software: Proprietary + VIA/QMK compatible
Backlight: Per-key RGB
Battery: 180–240 hours
Dimensions: Compact layout
Weight: 900–1100 g

Buying Call

Buy ATTACK SHARK X820 Ultra if the listed layout, switch feel and connectivity match your real desk setup. Skip it if you need a different size or only want a basic budget keyboard.

🏁 Final Verdict

ATTACK SHARK X820 Ultra: choose it if the layout and switch fit your workflow

ATTACK SHARK X820 Ultra is worth considering if you want a 75–80% keyboard with Mechanical (Hot-swappable) and the listed connectivity/software features. The safe decision depends on confirming exact version details and whether the layout fits your daily keys.

Layout: 75–80%Switch: Mechanical (Hot-swappable)Connection: Bluetooth + 2.4GHz / USB-CBest for: Gaming, Productivity

💻 Compatibility & Software Notes

Software
Proprietary + VIA/QMK compatible
Supported OS
Windows, macOS, Linux
Wireless
Bluetooth + 2.4GHz
Backlight
Per-key RGB

The software and OS fields reflect what's officially listed - remapping and wireless behaviour can vary by firmware version, so check the manufacturer's current documentation for specifics.

🔁 Alternatives to Consider

Full

size keyboard: choose this if you need a number pad for daily work.

TKL keyboard

choose this if you want more mouse space while keeping navigation keys.

Compact 65%/75% keyboard

choose this if desk space and portability matter more than dedicated keys.

Basic office keyboard

choose this if price and simplicity matter more than customization.

✅ Source / Verification Notes

✓

Specifications on this page come from the manufacturer's published listing.

✓

We have not physically tested this exact unit, so treat latency, battery life and typing feel as manufacturer claims rather than independently measured results.

❓ Frequently Asked Questions

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