The ASRock Steel Legend 360 LCD White AIO Cooler is a 360mm all-in-one liquid cooler with a 3.4-inch full-color LCD display, built for enthusiasts who want real-time system monitoring and customizable visuals alongside reliable CPU cooling. It suits Intel and AMD platforms and solves the problem of balancing performance, aesthetics and system visibility in a single unit.

Why This Product

• 3.4-inch LCD display with real-time stats — The IPS LCD shows system metrics and custom visuals in 480 x 480 resolution at 60 FPS. Connect via USB Type-C to your motherboard for instant access to temperature, clock speed and animations.
• Aerospace-grade LCP fan blades — Crafted from Liquid Crystal Polymer, the blades hold their geometry under extreme RPM and thermal stress, ensuring stable rotation and long service life.
• 0dB silent mode under low load — The radiator fans stop completely when demand is light, eliminating noise and extending bearing lifespan during quiet operation.
• 3-phase 6-slot pump with dual-inlet path — The precision motor runs 1200-3100 RPM and delivers stronger flow and extended durability for stable CPU power delivery and cooling.
• RGB sync with Polychrome and SignalRGB — Connect the ARGB header to an ASRock motherboard for full-system synchronized lighting, or use SignalRGB software for game-reactive effects and macro automation.
• 6-year cooler and 2-year LCD warranty — Industrial components and dual-ball bearings back the promise of long-lasting reliability.

At a Glance

Cooler type	360mm all-in-one liquid
LCD display	3.4" IPS, 480 × 480, 24-bit color
Pump speed range	1200-3100 ± 10% RPM
Radiator fan speed	0-2500 ± 10% RPM
Max radiator fan noise	38.3 dB(A)
Compatible sockets	Intel LGA1851, LGA1700 | AMD AM5, AM4
Warranty	6 years (cooler), 2 years (LCD)

Compatibility

• ✓ Intel LGA1851, LGA1700 socket platforms.
• ✓ AMD AM5 and AM4 socket platforms.
• ✓ Motherboards with 9-pin USB header for LCD display control.
• ✓ Systems with space for a 397 × 120 × 27 mm radiator and 100.4 × 86 × 107.6 mm water block.
• Note: Polychrome SYNC requires an ASRock motherboard; other boards can control the LCD and lighting via SignalRGB software.

Best For / Trade-offs

Best for:

• Enthusiasts who want live system monitoring built into their cooler.
• Builds prioritizing silence, with 0dB fan stops and dual-ball bearing precision.
• RGB ecosystem builders on Intel or AMD platforms, especially ASRock motherboard users.
• Users seeking high cooling capacity with a 3-phase pump and dual-inlet cooling path.

Trade-offs:

• Compact cases with limited radiator space; the 360mm radiator requires substantial room.
• Builders using non-ASRock motherboards who want native Polychrome SYNC without third-party software.
• Budget-conscious buyers; the LCD display and premium bearing construction add cost.

Description

Steel Legend stands for uncompromising strength and enduring reliability. With industrial-grade dual-ball bearings and aerospace-grade LCP fan blades, it delivers steadfast cooling performance and long-lasting durability — a true legend forged in steel.

3.4-inch full-color LCD display with 3-phase 6-slot pump and dual-inlet cooling path. Features industrial-grade dual-ball bearing, aerospace-grade LCP fan, 0dB silent cooling, RGB ecosystem, IIR+EPDM tubing, and 6-year warranty.

The Striped Ring fan design features reinforced blades engineered to optimize airflow across both the VRM module and the radiator, driving high-volume intake to keep power delivery components cool and stable, while generating strong lateral airflow for deep fin penetration and maximum radiator cooling efficiency.

Crafted from aerospace-grade LCP (Liquid Crystal Polymer), the blades maintain flawless geometry under extreme RPM and thermal stress — ensuring enduring precision, durability, and performance stability.

Crafted for superior concentricity, ensuring stable and effortless rotation under extreme conditions. The dual-bearing mechanism delivers consistent, long-lasting performance even under continuous high-temperature operation.

Fan stops completely under low load for absolute silence and extended lifespan.

Simply connect the 3-pin ARGB header to an ASRock motherboard to unlock Polychrome SYNC support, experience perfectly synchronized, full-system RGB illumination with seamless control.

SignalRGB unifies your RGB devices, offering seamless customization, game-reactive effects, macro automation, and system monitoring. ASRock AIO Liquid Coolers have passed comprehensive SignalRGB compatibility testing, ensuring reliable control of the LCD display and lighting effects through the SignalRGB software.

A 3.4" full-coverage LCD brings your system stats and custom visuals to life in vibrant detail. Combines real-time monitoring with customizable visuals, letting users display system stats, preferred images, or animations — all through an intuitive interface with multi-language support. Explore built-in animations or import your own for a fully customized display experience.

Precision-engineered structure and automotive-grade components, powered by a 3-phase, 6-slot, 4-pole motor for stronger flow, extended durability, and peak cooling performance for unwavering CPU stability.

IIR+EPDM core resists coolant evaporation and deformation, with braided sleeve reinforcement for durability, protection, and a clean high-end look.

Detach and rotate effortlessly for quick maintenance and flexible installation.

Minimal-step design enables fast, simple installation across multiple Intel® & AMD® platforms.

Cables remain hidden between fans, with only a single cable required to connect to the motherboard for a cleaner build. Integrated connectors provide a firm and precise connection between fans to ensure stable power and signal transmission for consistent operation.

Secure tubing placement, simplify installation, and maintain a clean, organized build.

Specifications

General

Brand

ASRock

Fan

Radiator fan dimensions	120 × 120 × 28 mm
Radiator fan speed	0-2500 ± 10% RPM
Radiator fan airflow (max)	76.7 CFM
Radiator fan connector	PWM (4-pin)
Radiator fan bearing	Dual-ball bearing
VRM fan dimensions	70 × 70 × 25 mm
VRM fan speed (max)	3000 ± 10% RPM

Performance

Pump speed	1200-3100 ± 10% RPM
Pump connector	PWM (4-pin)
Radiator dimensions	397 × 120 × 27 mm
Radiator material	Aluminum
Water block dimensions	100.4 × 86 × 107.6 mm
Water block cold plate	Copper
Tubing material	IIR + EPDM
Tubing length	450 mm
Radiator fan static pressure (max)	4.16 mmH₂O

Acoustics & power

Radiator fan noise (max)	38.3 dB(A)
Pump current / voltage	0.38 A / 12 V
Radiator fan current / voltage	0.30 A / 12 V
VRM fan current / voltage	0.12 A / 12 V

Display & connectivity

LCD type	IPS
LCD size	3.4"
LCD resolution	480 × 480
LCD color depth	24-bit
LCD brightness	250 cd/m²
LCD refresh rate	60 Hz
LCD connector	USB Type-C to motherboard (9-pin)
Water block LEDs	ARGB
Radiator fan LEDs	ARGB Gen1

Compatibility & warranty

Intel compatible sockets	LGA1851, LGA1700
AMD compatible sockets	AM5, AM4
Warranty (cooler)	6 years
Warranty (LCD)	2 years