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SSD Form Factors: 2.5-inch, mSATA, M.2

Unsure which type of SSD to get? There are three form factors (types) of Crucial SSDs. Take a look at the difference.

The standard form factor for SSDs is 2.5-inch, which fits inside a computer’s hard drive bay. Since many users often replace their hard drive with an SSD, a 2.5-inch drive allows you to remove your existing hard drive and install an SSD using the same connection.

A smaller form factor for SSDs is called mSATA. Crucial mSATA SSDs are one-eighth the size of our standard 2.5-inch drives, and are designed to plug into an mSATA socket on a system’s motherboard.

The other small form factor for SSDs is called M.2, which is about the size of a stick of gum. Crucial M.2 SSDs are designed for space-constrained tablets and ultrabooks.

To determine which type(s) of Crucial SSDs are compatible with your system, use our System Scanner tool and find out in just a few clicks. Here’s more information to get you started.

2.5-inch SSD mSATA SSD M.2 SSD
Specs & features Same Same Same
Installation SATA cable (located in hard drive bay) mSATA socket (located on motherboard) M.2 socket (located on motherboard)
Best for Laptops, desktops, servers Ultrathin laptops, Intel® NUC systems, mini ITX motherboards, desktops with an mSATA socket Tablets and ultrabooks
Target application Primary or secondary storage Primary storage in systems noted above; secondary storage (cache drive) Primary storage in tablets and ultrabooks

Solid State Drives

Crucial Solid State Drives
Two ways to find your upgrades

Crucial Advisor tool
If you know your system's specs, use this tool.

Crucial System Scanner
If you don't know your system's specs, use this tool.