Brand new AVC OEM customized 48V industrial cooling fan, model DATA0838B8U P006, DC48V 0.29A, 80×80×38mm thick frame with 4-wire PWM speed regulation connector. It provides sufficient static pressure with low vibration operation, high temperature resistant and anti-aging bearing design for stable 24/7 continuous operation, perfectly suited for telecom equipment and industrial 48V DC power system cooling. It works as ideal replacement for noisy, locked-rotor or performance-degraded original fan to eliminate internal heat buildup, overheating warning, power derating and thermal shutdown failures. ⚠️Important Wiring Notice Suffix P006 is exclusive OEM customized variant. Fans with different P suffix have identical appearance and mounting size but incompatible pinout assignment for power, ground, speed signal and PWM control. Direct plug-in swap is prohibited, which may lead to fan inoperable, abnormal speed detection or driver circuit burnout. Please carefully check wire sequence of your original fan before wiring. You can supply front & back fan photos plus wiring schematic for compatibility confirmation to prevent hardware damage caused by wrong wiring connection.