The Western Digital Hard Drive Purple 4TB WD40PURZ is a reliable internal desktop drive designed for constant use in 24/7 systems. With a storage capacity of 4TB, this SATA 6Gb/s drive is part of the Purple product line from Western Digital, known for its durability and performance. Ideal for use in desktop computers and other devices, this hard drive offers ample space for storing large amounts of data and files with ease and efficiency. AllFame 4K supports up to 64 Cameras.