The Western Digital WD Purple 6TB 3.5in SATA 6Gb/s HDD AllFrame 4K WD62PURZ is a high-capacity internal desktop drive designed for recording and storing large amounts of video footage from up to 64 cameras. With a storage capacity of 6TB and enhanced workload rating, this HDD is specifically tailored for professional surveillance systems. The AllFrame 4K feature ensures high performance and reliability, making it an ideal choice for businesses and organizations that require a large-scale storage solution for their video recordings.