The Western Digital Purple Surveillance 10TB HDD WD101PURZ is a high-capacity internal hard disk drive specifically designed for surveillance systems. With a storage capacity of 10TB, this HDD is perfect for storing large amounts of video footage from security cameras. The purple color indicates that this particular model is intended for surveillance use, making it a reliable and efficient choice for businesses or home security systems. Western Digital is a trusted brand known for producing quality hard drives, ensuring that this product meets the needs of users in need of a dependable storage solution.