19" Office Rack Acoustic 25U with Active Ventilation and 4 PWM Fans, 600×900×1260

The Office Rack Acoustic 25U 600×900 is the ideal solution for noise‑sensitive IT environments. Its robust construction, acoustic insulation and optimized airflow design ensure maximum noise reduction while maintaining efficient cooling performance.

Features & Specifications

Sound‑insulated 19" mini rack with internal acoustic foam
Noise reduction up to 38 dB
4 temperature‑controlled PWM fans (2 top exhaust, 2 bottom intake)
LED display and thermostat‑based automatic fan control
Central control board supporting up to 4 fans
Internal cable routing — no visible cables inside the rack
Depth‑adjustable 19" mounting rails, maximum installation depth: 690 mm
Lockable glass front door and lockable, removable rear panel
Cable entries at the top and bottom
Grounding kit included
Double castors with brake
Powder‑coated in RAL 9005 black
Dimensions (W×D×H): 600×900×1250 mm
Weight including packaging: 110 kg

New Fan Generation

The integrated white PWM fans are specifically designed for use in acoustic server cabinets. They operate quietly and efficiently thanks to PWM speed control, automatically adjusting their RPM based on temperature. The LED display provides quick visual monitoring. The neutral‑design central control board supports plug‑and‑play upgrades and is compatible with all acoustic rack variants from Lehmann IT.