Which of the following is a form factor for storage drives?

• A. M.2
• B. SATA
• C. 2.5-Inch
• D. PCIe

Answer: (A)

Form factor describes the physical size and shape of a storage device and how it fits into a system. M.2 is a compact, card-like form factor standardized for modern SSDs, designed to plug directly into an M.2 slot on the motherboard. It defines the physical footprint and connector style, while the actual data transfer can use different interfaces underneath (such as PCIe or SATA). The other options refer to interfaces or to a drive’s general size rather than the specific physical form factor name. So, M.2 is the designation that identifies the storage drive’s form factor.