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m2 is a form factor for internal mounted SSD devices<br />
<a href="https://en.wikipedia.org/wiki/M.2" rel="ugc">https://en.wikipedia.org/wiki/M.2</a><br />
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where 2.5 inch has a traditional hard drive form factor<br />
<a href="https://en.wikipedia.org/wiki/Hard_disk_drive#Hard_disk_drive_characteristics" rel="ugc">https://en.wikipedia.org/wiki/Hard_disk_drive#Hard_disk_drive_characteristics</a>
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m2 is a form factor for internal mounted SSD devices
https://en.wikipedia.org/wiki/M.2 [https://en.wikipedia.org/wiki/M.2]

where 2.5 inch has a traditional hard drive form factor
https://en.wikipedia.org/wiki/Hard_disk_drive#Hard_disk_drive_characteristics [https://en.wikipedia.org/wiki/Hard_disk_drive#Hard_disk_drive_characteristics]

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I presume it's self-evident, but you can only use an M.2 unit if your motherboard has an M.2 slot :-)
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I presume it's self-evident, but you can only use an M.2 unit if your motherboard has an M.2 slot :-)

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Hi Experts<br />
i wanna know the difference between<br />
Samsung 850 EVO 500 GB M.2 3.5-Inch SSD<br />
and<br />
Samsung 850 EVO 500GB 2.5-Inch SATA III Internal SSD
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Hi Experts
i wanna know the difference between
Samsung 850 EVO 500 GB M.2 3.5-Inch SSD
and
Samsung 850 EVO 500GB 2.5-Inch SATA III Internal SSD

SSD VS m2

Storage devices include any device used for storing and retrieving digital information. Hard disk drives (HDDs) use one or more rigid ("hard") rapidly rotating disks (platters) coated with magnetic material. Data is accessed in a random-access manner, meaning that individual blocks of data can be stored or retrieved in any order and not only sequentially. The primary competing technology for secondary storage is flash memory in the form of solid-state drives (SSDs), but HDDs remain the dominant medium for secondary storage due to advantages in price per bit and per-device recording capacity. CD-RW (Compact Disc-ReWritable) is a digital optical disc storage format that allows information to be stored outside the mechanical HDD.

Storage Hardware

Computer data storage, often called storage or memory, is a technology consisting of computer components and recording media used to retain digital data. In addition to local storage devices like CD and DVD readers, hard drives and flash drives, solid state drives can hold enormous amounts of data in a very small device. Cloud services and other new forms of remote storage also add to the capacity of devices and their ability to access more data without building additional data storage into a device.

Storage

Components are those devices that are internal to a computer -- the PC boards, the central processor (CPU), the memory (RAM), disk and video controllers and so on.

Components

Hardware includes cell phones and other digital living devices, tablets, computers, servers, peripherals and components, printers and scanners, gaming consoles, networking hardware such as routers, hubs, switches and modems, storage devices and security equipment such as firewalls and other appliances.