I am looking for a hard drive for my companys servers and we do a lot of work with big data. The 1TB 3.5IN SAS 7KXJR hard drive seems like a choice for businesses that need a hard drive that works well and stores a lot of data. This hard drive is 3.5 inches. Is made to work with our servers and storage systems. The SAS connection is good, for moving data in a business setting. Before I buy a hard drive I always check that it will work with my server and I look at the details of the hard drive what kind of connection it needs and if my server has space for it. If I am replacing a hard drive I compare how much data it can hold, how fast it is, if it is reliable and what kind of warranty it has. This helps me make a decision. I will choose the 1TB 3.5IN SAS 7KXJR drive if it is what my system needs.