Find an empty 3.5-inch drive bay. Many cases now feature "tool-less" trays; if yours does, slide the tray out, snap the drive into it, and slide it back in. If not, slide the drive into the slot and secure it with screws on both sides. Connect the SATA Data Cable Plug one end of the SATA data cable

With the hardware installed, the side panel can be replaced and the computer plugged back in. However, the job is not yet finished; the software requires configuration. Upon booting the computer, the user should enter the system BIOS or UEFI (usually by pressing F2, F12, or Delete during startup) to verify that the motherboard detects the new drive. If the drive is visible in the BIOS, the hardware installation is a success. The final step occurs within the operating system. If the drive is brand new, it will not appear in the file explorer immediately. The user must access the "Disk Management" utility in Windows (or "Disk Utility" in macOS) to initialize the disk and create a new volume. This process formats the drive, making it ready for use.

Plug the smaller 7-pin SATA data cable into the drive and an open motherboard port.