This hard drive from Seagate is built to be mounted inside your computer. The storage capacity is 1 TB. The form factor is 3.5" which apart from this model is commonly used in HDD
From Amazon
Seagate FireCuda 1 TB Solid State Hybrid Drive Performance SSHD – 3.5 Inch SATA 6 Gb/s Flash Accelerated 64 MB Cache for Gaming PC Laptop (ST1000DX002)
Amazon
Seagate HDD Internal 1 TB FireCuda SATA 3.5 Computer Hard Disk Drive - Silver