Learn more about Western Digital WD221PURPModelBrandWDSeriesPurple 6.0Gb/sCapacity22TBRecording TechnologyCMRRPM7200 RPMCache512MBFeaturesFeaturesThe WD Purple Pro HDD, with OptiNAND technology in 22TB, delivers big capacity in a drive engineered for advanced, AI-enabled, always-on smart video recorders, appliances, and servers.Western Digital's exclusive AllFrame AI technology improves ATA streaming to help reduce frame loss and improve overall video playback.WD Purple Pro drives are optimized to handle up to 64 single-stream HD cameras as well as many of the latest smart cameras that transmit multiple streams. With a workload rating up to 550TB/year, these drives are built to keep up with heavy video data capture and analysis. The reliable WD Purple Pro is engineered with an MTBF of up to 2.5 million hours4 for advanced smart video solutions that operate in 24/7 environments.Western Digital Device Analytics provides a wealth of storage device parametric operational and diagnostic data to compatible systems.UsageFor Video SurveillanceDimensionsForm Factor3.5"Height (maximum)26.10mmWidth (maximum)101.60mmLength (maximum)147.00mmShippingEnjoy fast and reliable shipping when you buy your products from Newegg. Our ordering and shipping services are among the best in the industry due to short processing times and a variety of shipping methods. Your orders are packaged at one of the many local warehouses across the country, minimizing delivery times and ensuring you get your purchases as soon as possible.PaymentsNewegg has partnered with PayPal to offer you the very best in payment services. PayPal allows you to buy with confidence, knowing your payments are processed quickly and securely with state-of-the-art encryption technology.ReturnReturns are subject to restocking fees of 15% - 30% of the purchase price and return shipping fees. For products that are eligible for return for replacement, the return shipping labels are free for returns for replacement of the same item within the applicable return policy period. Newegg does NOT charge for restocking fees or return shipping labels for returns of defective products, or if you received the wrong product, the product did not match what was shown on the Site, or we made some other shipping error, provided the item is returned within its return policy period, and in accordance with the Return Policy. For international buyers, items shipped internationally do not qualify for manufacturer warranties.