Product Description Upgrading your PC with a Samsung SSD is the most economical way to breathe new life into an aging PC. The 840 EVO reads, writes and multi-tasks at incredible speeds, enhancing boot-up speed, application loading and multi-tasking performance. It's more than an upgrade, it's a complete transformation of your PC. From the Manufacturer With upgrades to NAND, a new controller and firmware, the 840 EVO features the latest technology, while providing class leading responsiveness under everyday workloads, enhancing boot-up, application loading, and multi-tasking performance. Its 97K IOPS powers performance that is up to 10X faster than a regular HDD. And, Samsung's TurboWrite technology delivers dramatically faster sequential write performance. This 840 EVO has a storage capacity of 250 GB and comes with software for easy installation.TurboWrite technology delivers dramatically faster sequential write speeds, boosting overall PC performance.All components are designed and produced by Samsung.TurboWrite for Faster PerformanceSamsung TurboWrite technology uses an innovative write acceleration algorithm and a high-performance write buffer to dramatically boost the sequential write speeds for overall improved performance. RAPID Mode for Efficient Data CachingThe 840 EVO includes Samsung Magician software with RAPID mode--an innovative DRAM caching enhancement which boosts PC performance by using idle DRAM as an ultra-fast buffer that improves system performance over time as the drive optimizes to your tasks. Encryption Technology to Secure Your DataThe 840 EVO features Self-Encrypting Drive (SED) technology to encrypt your data and help keep your personal files secure. Because the technology is hardware-based, it eliminates performance degradation that can occur in software-based encryption. Sleek, Sophisticated DesignAt only 7 millimeters thick and weighing just 2 ounces, the 840 EVO Series SSD features a sleek, lightweight design. The stunning brushed aluminum design emphasizes luxury and refinement, but is durable enough to protect your data from loss due to shock, dust and corrosion. All of the components of the 840 EVO are designed and manufactured by Samsung to ensure optimal quality, performance, and lifespan. Included Software for Smooth InstallationThis 840 EVO includes Samsung Data Migration software, which makes it simple to migrate your data, applications, and operating system from your hard disk drive to the SSD. In addition, Samsung Magician gives you all the tools to monitor, manage, and maintain your new SSD. Easier-Than-Ever Upgrade ToolsSamsung's One-stop Installation Navigator provides a comprehensive guide for software installation, data migration, and hardware setup. The simple Samsung Data Migration software supports a powerful and unique "Custom Cloning" feature that simplifies the transition to your new SSD. What's in the BoxSamsung 840 EVO SSD, Samsung One-Stop Installation Navigator software, Samsung Data Migration software, and Samsung SSD Magician software.840 EVO Series 250 GB SSD (Single Unit Version)At a Glance:Optimized to improve everyday PC productivity, including web-browsing, email, multimedia, and gamingQuieter and more shock-resistant than a traditional HDDSamsung's TurboWrite write acceleration technology offers significantly faster write speedsUltra-fast data buffering with Samsung RAPID technologyAES 256-bit hardware-based encryption to protect files100 percent genuine Samsung memory componentsIncluded software helps you install the SSD and safely and simply migrate your dataView larger.Available in capacities up to 1 TB (see chart below). Samsung 840 EVO Series Solid State Drives Capacity 120 GB 250 GB 500 GB 750 GB 1 TB Model # MZ-7TE120BW MZ-7TE250BW MZ-7TE500BW MZ-7TE750BW MZ-7TE1T0BW Type of Drive Solid State Drive (SSD) Form Factor 2.5-inch (Reduced 7mm z-height for use with ultraportables and netbooks) For Use With Desktop and laptop PCs (including ultraportables and netbooks) Interface SATA III 6Gbits/s (backwards compatible with SATA II 3Gbits/s and SATA I 1.5Gbits/s) Random Read Speeds** 94K IOPS 97K IOPS 98K IOPS Sequential Read Speeds 540 MB/s Sequential Write Speeds 410 MB/s 520 MB/s 520 MB/s 520 MB/s 520 MB/s Controller 3-Core Samsung MEX Controller Type of NAND Flash 1xnm Samsung Toggle DDR 2.0 NAND Flash Memory (400 Mbps) Type of Cache 256 MB Samsung LPDDR2 512 MB Samsung LPDDR2 SDRAM 1 GB Samsung LPDDR2 SDRAM Dimensions 0.27 by 2.75 by 3.94 in. (H x W x D) ** 4K Random Read (QD32)