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A4Tech Bloody B2100 Gaming Desktop COMBO
$ 32.00 Original price was: $ 32.00.$ 30.00Current price is: $ 30.00. ---ONLY---
SKU:
X820-ULTRA-MOONNIGHT
ATTACK SHARK X820 Ultra 75% Tri-Mode Gasket Mechanical Keyboard With Smart TFT Display, Metal Knob, Hot-Swappable Linear “GIFT” Switches, 4000mAh Battery, And RGB Backlight | Moonlit Night
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Description
Expert Features
- Smart TFT Display With Metal Control Knob : A vivid 0.85-inch TFT screen paired with a precision metal knob provides real-time visual feedback for RGB control, OS switching, battery level, date, and connection status.
- 75% ANSI Compact Layout : An 80-key layout with dedicated arrow keys delivers full functionality in a space-saving footprint, ideal for gaming, productivity, and portable setups.
- Tri-Mode Connectivity System : Seamlessly switch between 2.4GHz wireless, Bluetooth, and USB-C wired modes to match your workflow or gaming needs.
- 4000mAh High-Capacity Battery : Large internal lithium battery supports extended wireless use across gaming, work, and creative sessions.
- Upgraded Gasket-Mounted Structure : Soft gasket mounting reduces vibration and enhances typing comfort for a smoother, more refined keystroke feel.
- Single-Key Slotted 1.2mm FR4 PCB : Fiberglass PCB with individual switch slots improves flex consistency and keystroke uniformity across the entire keyboard.
- Advanced 5-Layer Acoustic Tuning : PORON foam, IXPE pad, PET sheet, DEPDM, and molded silicone combine to deepen sound, soften impact, and enhance typing feedback.
- Hot-Swappable Switch Sockets : Supports both 3-pin and 5-pin mechanical switches, allowing easy customization without soldering.
- Gift Linear Switch Option “THIS KEYBOARD”: Tuned for balanced resistance with a deeper, resonant “thock,” ideal for stable and satisfying keystrokes.
- Shark Linear Switch Option: Lighter actuation delivers a faster, crisp “clack” response for users who prefer quick, responsive typing.
- Precision-Tuned Stabilizers : Large keys feel firm, controlled, and rattle-free with consistent rebound.
- Dynamic RGB Lighting System : 16.8 million colors and over 19 lighting presets create a customizable visual experience.
- South-Facing LED Design : Ensures even RGB illumination through PBT keycaps and improved compatibility.
- Web-Based QMK Driver Support : Customize macros, key mapping, and lighting directly from your browser using qmk.top.
- Wide Multi-Device Compatibility : Supports PC, Mac, smartphones, and tablets with fast OS switching from the keyboard itself.
- Durable PBT Keycaps : Double-shot OEM-profile PBT keycaps resist shine and wear for long-term consistency.









Expert Specs
| Category | Specification |
|---|---|
| Model | ATTACK SHARK X820 Ultra |
| Layout | 75% ANSI |
| Key Count | 80 Keys + 1 Control Knob |
| Screen | 0.85-Inch TFT Smart Display |
| Connectivity | 2.4G Wireless / Bluetooth 5.0 / USB-C Wired |
| Battery Capacity | 4000mAh Li-Battery |
| Mounting Type | Upgraded Gasket-Mounted |
| PCB Design | 1.2mm FR4 Single-Key Slotted PCB |
| Sound Dampening | 5-Layer Acoustic Foam |
| Hot Swappable | Yes (3-Pin / 5-Pin Compatible) |
| Switch Type | Linear (Gift Switch / Shark Switch) |
| Backlight | 16 Million RGB |
| LED Orientation | South-Facing |
| Keycaps | Double-Shot PBT, OEM Profile |
| Compatible Devices | PC, Mac, Smartphone, Tablet |
| Dimensions | 327 × 136 × 40 mm |
| Weight | 0.8 kg |
| Driver Software | Web Driver With QMK Support (qmk.top) |
| What’s In The Box | Keyboard, 2-in-1 Key Puller, USB-C Cable, Manual |
Switch Specifications
Gift Switch (Linear)
- Total Travel: 3.6 ± 0.2 mm
- Actuation Force: 45 g ± 8 g
- Pre-Travel: 2.0 ± 0.4 mm
- Bottom-Out Force: 60 g ± 8 g











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