I have a special memory for a surveillance camera recording device. It is configured to run 24 hours a day, 7 days a week. It is fast in saving high-quality videos and can handle 64 cameras. The hard drive is very clean and works as guaranteed. There is also a 4TB with the same specifications. For contact, WhatsApp or private message: ( Phone number appears when clicking the contact button ) . WD Purple Surveillance Hard Drive