Catalog   /   Computing   /   Input Devices   /   Keyboards   /   A4Tech

A4Tech Bloody AT75 Alpha Optical Switch

Photos - Keyboard A4Tech Bloody AT75 Alpha Optical Switch
Photos 22
Expecting restock
A wired gaming keyboard in a compact 75% format, launched on the market in 2026. The model lacks a numeric keypad, yet retains the classic ANSI layout with high-profile keys. The device is based on linear Alpha Optical switches with a claimed lifespan of 100 million keystrokes and a polling rate of 1000 Hz for minimal latency. A key feature of the mechanics is the ability for software regulation of the actuation point in a range from 0.8 to 3.0 mm. This function is complemented by the eXact Reset system, which allows the reset distance of a key to be shortened to 0.3 mm for near-instantaneous re-registration of clicks. With such flexible settings, the A4Tech Bloody AT75 keyboard easily adapts to different control styles without the need for physical switch repla...cement. For increased durability, the main keycaps are molded from textured PBT plastic, which is resistant to finger shine. The construction is complemented by four special keycaps made from light magnesium alloy, which effectively dampen micro-shocks and vibrations during intensive use. The device supports N-KRO and Anti-Ghosting technologies for flawless detection of all simultaneous keystrokes. The visual design features customizable RGB lighting equipped with a Rhythm Lighting mode: a built-in high-sensitivity microphone synchronizes light effects with surrounding sound. Connection to a computer is made via a standard USB-A cable, and volume adjustment and gaming mode activation are managed through key combinations with the Fn key.
add to listmy lists
A4Tech Bloody AT75 Alpha Optical Switch
Main
Connectionwired
Cable length1.8 m
Typefor game
Form factor75% (compact TKL, without Num-block)
LayoutANSI
Keyboard
Key profilehigh
Key typeclassic type
Switch technologyoptical
SwitchesAlpha Optical (Linear)
Actuation force48 g
Trigger path0.8 – 3 mm
Total travel3.8 mm
Switch resource100 million clicks
Polling rate1000 Hz (1 ms)
PBT keycaps
Additional keys4
Anti-Ghosting
#KRON-KRO
Rapid Trigger
Fn key
Features
Volume controlfn
Built-in memory
Game mode
LightingRGB
Lighting effects+
Connection and power supply
CableUSB-A
removable
Port on the deviceUSB C
General
Replacement keys included
Size325x149x42 mm
Weight951 g
Official Websitebloody.com
Added to E-CatalogJanuary 2026

A wired gaming keyboard in a compact 75% format, launched on the market in 2026. The model lacks a numeric keypad, yet retains the classic ANSI layout with high-profile keys. The device is based on linear Alpha Optical switches with a claimed lifespan of 100 million keystrokes and a polling rate of 1000 Hz for minimal latency. A key feature of the mechanics is the ability for software regulation of the actuation point in a range from 0.8 to 3.0 mm.

This function is complemented by the eXact Reset system, which allows the reset distance of a key to be shortened to 0.3 mm for near-instantaneous re-registration of clicks. With such flexible settings, the A4Tech Bloody AT75 keyboard easily adapts to different control styles without the need for physical switch replacement. For increased durability, the main keycaps are molded from textured PBT plastic, which is resistant to finger shine.

The construction is complemented by four special keycaps made from light magnesium alloy, which effectively dampen micro-shocks and vibrations during intensive use. The device supports N-KRO and Anti-Ghosting technologies for flawless detection of all simultaneous keystrokes. The visual design features customizable RGB lighting equipped with a Rhythm Lighting mode: a built-in high-sensitivity microphone synchronizes light effects with surrounding sound. Connection to a computer is made via a standard USB-A cable, and volume adjustment and gaming mode activation are managed through key combinations with the Fn key.

The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.

Control System Customization

The A4Tech Bloody AT75 Alpha Optical keyboard offers extensive options for customizing controls to suit a specific user and gaming scenario. The model is built around Alpha Optical optical switches, with the actuation point adjustable for each key within a range of 0.8 to 3 mm. The X-Force and Z-Force gaming modes, designed for the fastest possible control, deserve special attention, making them particularly relevant in dynamic shooters. In X-Force mode, a repeated action is triggered once the key returns to 0.8 mm, while Z-Force reduces the reset distance to 0.3 mm. Four separate buttons are provided for quickly switching presets and accessing other functions. The built-in memory can store 4 profiles, so the configured settings remain available regardless of the PC and software being used. The switches are rated for 100 million keystrokes, giving the keyboard an impressive service life.

Everyday Comfort and Mobile Gaming

The model's capabilities are not limited to gaming scenarios. Its high response speed and advanced functionality make it suitable for advanced gaming, while the compact 75% format simplifies transportation and frees up more desk space. The detachable cable also adds convenience when carrying the keyboard. Silicone sound insulation is provided inside the case to reduce noise, and even the spacebar sounds quieter than most of the other keys.

The design also features some interesting details. The package includes replacement WASD keycaps made of a wear-resistant magnesium alloy, while the main set of keycaps is made of durable PBT plastic. An unusual element is the light strip at the top of the case, which interacts with the built-in microphone and responds to ambient sounds, serving a decorative function. The main RGB backlight supports color customization and offers 7 preset effects. As a result, the A4Tech Bloody AT75 Alpha Optical combines extensive customization, durable materials, compact dimensions, and rich features at a relatively affordable price.