WD Red Pro drives are engineered to handle high-intensity workloads in 24x7 multi-user commercial and enterprise NAS environments. They deliver the performance, scalability, and dependability businesses require to store, share, and collaborate on large amounts of data in multi-bay RAID-optimized NAS systems. This product has been fully tested and verified as functional, with no hardware or software defects. All data has been sanitized or the storage media removed in line with data protection standards. The device has been repaired using original manufacturer (OEM) parts where required and is loaded with legally licensed software. Cosmetically, the product is in excellent condition, showing only minimal signs of previous use, such as light surface marks or wear. It has been professionally cleaned, with all non-original labels removed, and all components are present and accounted for. Warranty: 1 Year. Enterprise-class hard drives engineered to deliver high performance and reliability to commercial and enterprise NAS environments. WD Red Pro drives are optimized for NAS with Western Digital's exclusive NASware technology, which fine-tunes drive parameters to match NAS system workloads, increasing performance and reliability. Designed for Continuous Operation, WD Red Pro hard drives handle rigorous demands of high-intensity 24x7 multi-user NAS environments and increase system durability. Tested for Dependable Compatibility, Western Digital partners with a wide range of NAS system vendors for extensive testing to ensure compatibility with most NAS enclosures. Protected against Excessive Vibration, WD Red Pro drives include Rotation Vibration (RV) sensors that anticipate and proactively counteract disturbances caused by increased vibration, minimizing turbulence, maintaining performance, and protecting drives. Built to Absorb Shock, WD Red Pro hard drives include a multi-axis shock sensor to detect subtle shock events and automatically compensate with dynamic fly height technology to further protect the drives in NAS enclosures. Engineered with Industry-Leading Technology, WD Red Pro 22TB and 24TB hard drives feature Western Digital's proprietary OptiNAND technology, which leverages integrated iNAND embedded flash to perform key housekeeping functions, freeing up more capacity and improving overall drive performance. Backed by World-Class Support and Warranty, as an industry-leading hard drive manufacturer, Western Digital stands behind their NAS storage solutions with the assurance of a 5-year limited warranty and world-class support services for hassle-free data storage.