MaxDigitalData (MD3000GSA3257DVR) 3TB 32MB Cache Coolspin (low power & quiet) SATA 6.0Gb/s 3.5" Internal Hard Drive with CoolSpin technology for low power consumption, low heat, and quiet operation, perfect for Surveillance System, CCTV DVR & Desktop computers (PC/MAC). The MaxDigitalData (MD3000GSA3257DVR) 3TB hard drive provides an enormous 3TB capacity, 32MB Cache and features innovative CoolSpin technology to deliver a greater level of power efficiency and quiet operation for energy-conscious, environmentally-friendly computers. Key to CoolSpin technology is an optimization of motor speed to provide an ideal balance of performance, power utilization and acoustics. The CoolSpin technology, along with other Hitachi power management techniques, gives the MD3000GSA3257DVR Hard Drive its 29% power savings over. This new 3TB is the first MDD CoolSpin hard drive with a 6Gb/s SATA interface. With low power, high capacity and cool operation, the 3.5-inch hard drive allows manufacturers to leverage the benefits of the latest components and operating systems to deliver more eco-friendly systems. Manufacturers planning to use the highest capacity 3TB drive in systems should consult the MDD High Capacity Technology Brief. Power efficient for cooler operation and longer life: CoolSpin and HiVERT technologies combine to create this new class of hard drive that delivers excellent power utilization and thermal emissions. HiVERT technology helps efficiently manage power consumption.