Summary: Had purchased a dvr for a security system, but it did not have a hard drive. We purchased this and it was a great price and a great item. It was easily installed into the dvr. So far I am very happy with it. Would recommend it to others.
Summary: I purchased this as a replacement for a smaller security system drive. This was one listed by the security system supplier as a suitable upgrade. It does what it is supposed to without any issues. It works. I can't really say any more.