This is a 25-pack.The 40GB Momentus 5400.3 Notebook Hard Drives utilizies advanced perpendicular recording technology, a method of arranging data bits onto magnetic disc media to increase the amount of data you can store and the dependability of the data. This innovative technology enables Seagate to deliver high capacities in a single, 2.5-inch disc drive. This technology coupled with a robust design and high shock tolerance, makes the Momentus 5400.3 ideal for mainstream notebook PCs, with the best combination of performance and mobility.

This is a 20-pack.Designed for use in the fastest PCs on the market, including high-performance business computers, multimedia and gaming systems, the 500GB WD Caviar SE16 7200 RPM Hard Drive comes with a massive 16MB cache for lightening fast performance. Its cool operating temperature means longer service life and greater reliability. The drive's WhisperDrive and SoftSeek technologies minimize noise to levels barely perceptible to the human ear in home and business environments. The Caviar SE16 protects your important data in a number of ways. Its Data Lifeguard technology is an exclusive set of data protection features, including shock protection, an environmental protection system and real-time embedded error detection and repair. WD's Data Lifeguard technology automatically finds, isolates, and repairs problems that may develop over the life of a hard drive.

This is a 5-pack.These WD RE 250GB SATA Hard Drives are designed with enhanced reliability in a 24x7, high duty cycle environment. With a next-generation SATA interface, up to 3.0 Gb/s data transfer rate, native command queuing (NCQ), and 16 MB cache, these drives deliver optimum performance. And they're built to last , made for years of high-performance operation around the clock. Reliability demonstration testing indicates a mean time between failure (MTBF) of one million hours. These drives are loaded with features. The SATA latching connector provides a secure connection between the hard drive and the cable connector via a locking latch mechanism. RAID-specific time limited error recovery improves error handling coordination with RAID adapters and prevents drive fallout caused by extended drive error-recovery processes. And hot plug support allows you to swap hard drives without having to power down the system or reboot, this promotes system design flexibility, data availability, and serviceability. WD RE drives are idea for servers, network attached storage, video surveillance, and enterprise backup.

This 60GB WD Scorpio 2.5" EIDE hard drive boasts best-in-class seek acoustics thanks to WD's enhanced WhisperDrive technology with SoftSeek algorithms . Perfect for your quiet home or business atmosphere, the drive features a significantly reduced acoustic level. Performance features include an average read seek time of 12ms (typical), track-to-track seek time of 2.0ms (typical), 100 MB/s transfer rates, and a 2MB buffer. The disk spins at 5400 RPM, and with ShockGuard to protect the drive mechanics and delicate platter surface from shocks, your important data will be safe.This is a 50-pack.

Having been the leader in 5.25-inch MO technology for over ten years, Sony proudly presents the latest in its MO drive line-up, with the highest performance and more reliability than ever. At 5.2 GBytes, the SMO-F551 is ideal for data intensive applications such as document imaging, CAD/CAM, graphic design and database processing. The drive offers total reliability with an MTBF (Mean Time Between Failure) of 100,000 Power on Hours and an MSBF (Mean Swaps Before Failure) of over 750, 000. It will perform well in the most demanding of information technology environments, whether standalone desktop or high-end network. A generous 4MB buffer memory is controlled by Sonys unique S-Cache algorithm. S-Cache includes sophisticated and proprietary data buffer/caching algorithms and features a high performance RISC CPU. Thus, the S-Cache is the perfect compliment to the high data transfer rates brought about by the drives fast rotational speed.

With the FreeAgent Go, you can turn any PC into your PC. The instructions make it easy to transfer a copy of your Web browser, favorites, passwords, IM Client and contacts, E-mail client, cookies, settings and files to the drive. With that done, simply plug the FreeAgent Go into any PC with a USB 2.0 port. The FreeAgent Go will transform that PC into a copy of your home PC. While in use, all of your actions are stored on the FreeAgent Go, so when you disconnect there is no trace of your Personal Data on the borrowed machine. The FreeAgent Go will even synchronize its data with your most frequented PCs, so its always up to date. The FreeAgent Go is a great way to not only take your data, but your entire Desktop environment with you wherever you go.

As demand for storage continues to expand, the need for more efficient power solutions becomes paramount. WD RE2 makes it possible for large scale data centers to increase storage capacity without exceeding available power, and in many cases actually reduce power consumption. WD RE2 drives help combat the four major challenges large data installations facetotal drive slots, maximum capacity, power allotment, and available operations expense budgetwhile lowering the overall total cost of ownership.

The Seagate Momentus 7200.3 laptop hard drive delivers industry-leading 7200-RPM performance while offering the industry?s lowest power consumption levels.

The Cheetah 15K.5 is designed to be the fastest and most reliable Cheetak 15K ever. The 15K RPM spindle speed of the Cheetah 15K.5 delivers 30 percent more IOPs and has more than 20 percent faster response times than 3.5" 10K drives. The 3 Gbit/sec SAS connectivity provides up to 300 Mbyte-per-second throughput and faster sustained transfer rate. Background Media Scan proactively scans the media for potential defects during drive idle time without using system bandwidth. It enables incipient errors to be corrected before data is lost. Equipped with Seagate's Error Correction Code, the Cheetah 15K.5 better maintains performance throughout life of the drive and reduces the probablity of lost data. The Seagate-exclusive Idle Read After Write (IRAW) enhances date protection by verifying-during drive idle time that the data in the drive buffer was properly written.

The Seagate Momentus 7200.2 laptop hard drive offers the best combination of high performance, capacity and mobility in a 2.5-inch drive. Momentus 7200.2 hard drives are ideal for mainstream and performance-class laptops, small form factor PCs and many other small or mobile environments where performance and size are critical.