The Seagate IronWolf 125 ZA250NM1A002 is a 250 GB internal solid state drive that is optimized for use in a network attached storage (NAS) system. It has a 2.5-inch form factor and uses SATA 6Gb/s interface, allowing for fast data transfer speeds of up to 600 MBps. In terms of performance, the IronWolf 125 has a SSD endurance of 300 TB and an internal data rate of 560 MBps (read) and 540 MBps (write). It also has impressive 4KB random read and write speeds of 95,000 IOPS and 90,000 IOPS respectively. The drive has a mean time between failures (MTBF) of 1,800,000 hours and is designed for 24x7 operation, making it a reliable choice for continuous use. In terms of physical specifications, the IronWolf 125 measures 2.8 inches in width, 4 inches in depth, and 0.3 inches in height, and weighs 1.76 ounces. It is designed to withstand operating temperatures ranging from 32°F to 158°F, and non-operating shock tolerance of 1500 g at 0.5 ms. It is compatible with Linux and Windows 8.1/10 operating systems and comes with IronWolf Health Management software. It has a single SATA 6 Gb/s interface and is designed to fit in a 2.5-inch bay.