Silent Performace:

• There are two silent 14cm ball-bearing intake blue LED fan (1200RPM) which brings cold air into the chassis
  
  
• The drive bay cage has with rubber pads to absorb the vibration and reduce the noise.
  
  
• The Front panel is mounted with a specially made plastic kit, this prevents the metal parts touching each other, and reduces the noise by reducing the vibration.
  
  
• Lian Li designers consider every detail. The PC-B71 is equipped with anti-vibration clips and grommets on the chassis, to absorb the noises created by vibrating and spinning parts. The EMI spring on the top cover absorbs the vibrations, without interfering with the side panel.
  
  
• Chassis has anti-vibration grommets to support the motherboard tray. The anti-vibration spring clips on the chassis push against the side panel to reduce the chance of vibration, while enhancing the perfect fit between the removable parts.
  
  
• There is sound insulation material on the internal side of the 2mm side panel to reduce the noise level.
  
  

• Huge internal space for power supply units, there are anti-vibration rubber strips to reduce the noise.
  
  

• The aluminum case stand with rubber pad to absorb the vibration to reduce the noise.
  

Creative Thermal Solutions:

• PC-B71 is using Thermal Tunnel solution, the two 140mm fans in the front input cold air into the system, the two 120mm fans and the PSU's fan draw the hot air out as a heat circulation.
  
  
• PC-B71 Features a three-speed fan controller, user can adjust the fan speeds to get the best balance between silent and increased cooling. Factory setting are default at Mid Speed, but user can adjust the fan speed as needed.
  
  
• There are two 140mm intake blue LED fan on PC-B71, The fan can output high air flow volume with lower RPM to push the cold air through the HDD rack. It connected to a three-speed controller, factory setting at middle(980RPM), user can adjust it to suit.
  
  
• There is a 120mm exhaust fan behind HDD cage to draw the hot air out, and improve the air flow inside the chassis.
  
  
• There is a 120mm exhaust fan at the rear to draw the hot air out, and improve the air flow inside the chassis.
  
  
• The PCI bracket with vent holes adds extra ventilation possibilities for improved airflow for optional graphics card coolers.
  

User Frinedly:

• Multi-media port connectors follow international specification standards, with one connector for easy installation.  Audio supports HD Audio or AC97 Audio. The dual design is for better compatibility options.  All I/O ports on the top cover, allow for easy access, there is also a dust-free cover to protect these connectors.
  
  
• The case front intake fans has equipped air filter, to stop dust entering the chassis. These air filter were washable, envirnoment friendly
  
  
• PC-B71's front panel can be easily removed, with all the switches and wires mounted in the chassis, and therefore out of the way.
  
  
• PC-B71 has equipped a server grade graphics card holder to hold the graphics card in position, avoid from bending and damage.
  
  
• There is a special gear for cables to pass through, allow uesr convenient manage the cables.
  
  

• There is a lock on the door in the HDD cage to protect your HDD’s. The included grill and air filter for the intake fan are easily removed and washable.
  
  

• To release the solid side panel, simple just un-do the thrumb screw, and pull the latch. There is a hook for security lock.