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2. Disk enclosure - Wikipedia

   en.wikipedia.org/wiki/Disk_enclosure

   An eSATA and Mini USB hard disk enclosure board Multiple connectors including external power on a 2.5 inch enclosure The PCB of an enclosure controls the data transfer, generic mass storage device drivers are readily available on most operating systems This 2.5 inch caddy uses a single connector mini USB

3. List of disk drive form factors - Wikipedia

   en.wikipedia.org/wiki/List_of_disk_drive_form...

   8-, 5.25-, 3.5-, 2.5-, 1.8- and 1-inch HDDs, together with a ruler to show the length of platters and read-write heads A newer 2.5-inch (63.5 mm) 6,495 MB HDD compared to an older 5.25-inch full-height 110 MB HDD. IBM's first hard drive, the IBM 350, used a stack of fifty 24-inch platters and was of a size comparable to two large refrigerators.

4. Drive bay - Wikipedia

   en.wikipedia.org/wiki/Drive_bay

   A 2.5-inch solid-state drive (SSD) For 2.5-inch bays, actual dimensions are 2 + 3 ⁄ 4 inches (69.9 mm) wide, between 5 millimetres (0.20 in) and 3 ⁄ 4 inch (19.1 mm) high, and 3.955 inches (100.5 mm) deep. However, most laptops have drive bays smaller than the 15 mm specification. 2.5-inch hard drives may range from 7 mm to 15 mm in height.

5. Hard disk drive interface - Wikipedia

   en.wikipedia.org/wiki/Hard_disk_drive_interface

   The SAS is a new generation serial communication protocol for devices designed to allow for much higher speed data transfers and is compatible with SATA. SAS uses a mechanically identical data and power connector to standard 3.5-inch SATA1/SATA2 HDDs, and many server-oriented SAS RAID controllers are also capable of addressing SATA hard drives.

6. Hard disk drive - Wikipedia

   en.wikipedia.org/wiki/Hard_disk_drive

   Inner view of a 1998 Seagate HDD that used the Parallel ATA interface 2.5-inch SATA drive on top of 3.5-inch SATA drive, showing close-up of (7-pin) data and (15-pin) power connectors Current hard drives connect to a computer over one of several bus types, including parallel ATA , Serial ATA , SCSI , Serial Attached SCSI (SAS), and Fibre Channel .

7. Computer case screws - Wikipedia

   en.wikipedia.org/wiki/Computer_case_screws

   securing a 3.5-inch hard disk drive to the case; holding an expansion card in place by its metal slot cover; fastening case components to one another; usually, one or more #6-32 UNC screws hold the main cover on the case; They are almost always provided with a #2 Phillips drive. Sometimes a Green Robertson or Torx drive is used instead. All ...