Antec A400i RGB CPU Air Cooler with 4 Direct-Touch Copper Heat Pipes

The Antec A400i RGB is a single-tower CPU air cooler designed for mainstream desktop builds that demand efficient thermal management alongside visual appeal. At its core, four 6 mm direct-touch copper heat pipes make direct contact with the CPU heat spreader, transferring heat rapidly from the processor to the aluminium fin stack. This direct-contact design shortens the thermal path and helps maintain stable operating temperatures during sustained workloads. Cooling performance is handled by a 120 mm PWM RGB fan capable of spinning between 800 and 1800 RPM, automatically adjusting speed based on system temperature through the 4-pin PWM connector. At full speed the fan moves up to 72 CFM of air through the fin array while generating between 20 and 36 dB(A) of noise, allowing the cooler to remain relatively quiet during light tasks and ramp up only when thermal load demands it. Maximum static air pressure reaches 2.1 mmH₂O, helping push airflow effectively through the dense aluminium fins. The fan operates on 12 V DC and draws a rated current of 0.16 A. The RGB lighting is driven automatically through the 4-pin fan connector, cycling through neon colour effects without requiring a separate RGB header or software configuration, making it accessible on motherboards that lack dedicated RGB control headers. Mounting is handled via a metal retention mechanism that simplifies installation across a wide range of sockets. The cooler is compatible with Intel LGA 1151, 1150, 1155, 1156, 1366, 2011, LGA 1200, and LGA 1700 platforms, as well as AMD AM4, AM3+, AM3, AM2+, AM2, FM2+, FM2, and FM1 sockets, covering a broad span of current and previous-generation processors. Verified Specifications: – Model: A400i – Cooler Dimensions (D × W × H): 128 × 76 × 155 mm – Fan Dimensions: 120 × 120 × 25 mm – Fan Type: PWM RGB LED – Fan Speed: 800–1800 RPM (PWM) ± 10% – Airflow: 72 CFM max – Noise Level: 20–36 dB(A) – Air Pressure: 2.1 mmH₂O max – Connector: 4-pin – Rated Voltage: 12 V DC – Rated Current: 0.16 A – Heat Pipe Diameter: 6 mm (×4) – Heat Sink Material: Aluminium fins with 4 copper heat pipes – Intel Socket Support: LGA 1151 / 1150 / 1155 / 1156 / 1366 / 2011 / LGA 1200 / LGA 1700 – AMD Socket Support: AM4 / AM3+ / AM3 / AM2+ / AM2 / FM2+ / FM2 / FM1 – GTIN: 0761345109130 – Warranty: 1 Year