JRM Infotech

The AK400 Black uses a single‑tower heatsink design with four Ø6 mm direct‑touch copper heat‑pipes. Shiv Shakti Computers+2TweakTown+2

Heatsink dimensions: ~120 × 45 × 152 mm; overall product size ~127 × 97 × 155 mm. Net weight around 661 g. TLG Gaming+1

Included fan: 120 × 120 × 25 mm, fluid dynamic bearing, 4‑pin PWM. Speeds from around 500 → 1850 RPM. Max airflow ~66.47 CFM, static pressure ~2.04 mm H₂O. Noise rating up to ~29 dB(A). TLG Gaming+2TweakTown+2

Compatibility: Supports a wide range of CPU sockets including Intel LGA1700/1200/115x and AMD AM4 (and many reviews mention AM5 support or upgrade kits) depending on region. Computech Store+1

Performance rating: The manufacturer lists it with a TDP/heat‑dissipation capacity around ~220 W in some listings.