Seagate® Cheetah® 15K.5 Ultra320 SCSI 68-pin 73-GB Hard Drive - 20 PK The Seagate Cheetah 15K.5 Ultra320 SCSI 73-GB enterprise hard drive offers an unrivaled combination of high performance, high reliability and best price for performance. Seagate Cheetah 15K.5 hard drives feature perpendicular recording technology for maximum capacity and reliability and are the first to break the 100-MB/s sustained transfer rate barrier. The Cheetah 15K.5 drive delivers higher throughput with fewer drives than conventional 10K RPM solutions. Background management functions improve media integrity, increase drive efficiency and reduce failures—allowing for the industry’s highest field-proven reliability and price-for-performance value. The Cheetah 15K.5 hard drive offers lasting value, enabling systems to keep up with increasing performance needs over a longer period of time in enterprise environments where reliability and performance are critical. Key Features and Benefits 16-MB cache Ultra320 SCSI 68-pin interface Perpendicular recording technology for maximum capacity Up to 125-MB/s sustained transfer rate 30 percent more IOPS than 10K 3.5-inch drives Reduced RAID rebuild times Highest reliability rating in the industry Lower total cost of ownership (TCO) 5-year warranty Best-Fit Applications Workstations Midrange and high-end servers Direct attached storage (JBOD/RAID) Storage area networks (SAN) storage Network attached storage (NAS) storage High-performance computing (scientific/technical data) Data streaming, mining, visualization and analysis Online transaction processing (OLTP) Collaboration (groupware, email, e-learning, messaging)

Specifications Interface Ultra320 SCSI Cache 16 MBytes Capacity 73.4 GB Spindle Speed 15,000 rpm Average latency 2.0 msec Random read seek time 3.5 msec Random write seek time 4.0 msec Height (max) 1.028 inches Width (max) 4.010 inches Length (max) 5.787 inches Weight (typical) 1.85 pounds

Cheetah 15K.5 Data Sheet