This unit is USED and came out of a rack. It does NOT have the original power supply. This unit will be shipped with a compatible power supply and has been fully tested with this unit. I have added a video of the unit in use. I have applied some light heat using a heat gun, and it turns on automatically. It is very quiet.
TheQBP-2fromMiddle Atlanticis a 1 RU blower panel with a pair of custom-designed blowers that provide cooling to equipment stored in credenzas and small rack systems.

The fans switch on or off and speed up depending on the temperature inside the rack, thereby ensuring low power consumption. In addition, the blower provides high static pressure to ensure steady airflow, even in cramped racks. The blower panel offers a displacement of 100 CFM with minimal noise (32 dB), allowing for quiet operation, even at high speeds.

• Custom-designed blowers provide cooling to the A/V equipment stored in credenzas and small rack systems
• Blower provides high static pressure to ensure steady airflow even in cramped racks
• Proportional thermostatic control only runs when needed
• Unit operates at only 32 dB while moving 100 CFM
• Black brushed and anodized finish
• 1 Rack space