M.2 SATA Vs. 2.5-Inch SATA: What Are the Differences?

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When choosing between an M.2 SATA and a 2.5-inch SATA SSD, it's essential to understand their performance features. While both offer solid-state storage, they have different form factors, heat dissipation, weight, price, availability, and more.

Continue reading this post to know more about M.2 SATA and 2.5′′ SATA SSD.

Comparison of SATA 2.5′′ and M.2 SATA SSD

Form Factor

The SATA 2.5-inch SSD has a standard SATA interface and form factor, while the M.2 SATA uses the M.2 form factor, which is significantly smaller in size.

P4 Series SSD

Heat Production

M.2 may produce more heat due to its small size, whereas the 2.5-inch may produce less heat because of its larger size.

Physical Dimensions and Weight

Most SATA 2.5-inch SSDs are around 100mm tall and 70mm wide, with a thickness of about 7mm. The weight can range from 40-60g depending on the type, brand, and outer case. On the other hand, the M.2 SATA SSD weighs between 5-10g and comes in various shapes and sizes. The most common dimensions are 22mm wide and 80mm long, with a thickness of about 2mm. If you want a compact and tidy computer, M.2 SATA is the way to go. Otherwise, SATA 2.5-inch is also a good choice.

Speed and Performance

M.2 SSDs have faster throughput and lower latency than 2.5-inch SATA SSDs, which have a lower throughput and higher latency. The maximum speed for M.2 is 7500 MB per second, while the 2.5-inch has a maximum speed of 550 MB per second.



SATA 2.5-inch SSDs are often heavier, which can cause internal component damage due to G-Force. Dropping an M.2 might not make much of a difference since these SSDs are usually deployed internally. However, if you intend to use an SSD externally, SATA 2.5-inch is an excellent choice due to its robust construction and exterior shell. Some even have a metallic casing. Both M.2 and 2.5-inch SSDs have good durability, but 2.5-inch gives you the benefit of being able to utilize it in the capacity of a portable SSD with no sacrificing durability.

Energy Consumption

M.2 power consumption is generally lower than that of 2.5-inch SATA drives. However, the 2.5-inch SATA power consumption is higher.


SATA 2.5-inch is easy to install and can be mounted on any motherboard, while M.2 SATA is extremely simple to install but can only be set up in an M.2 Port.

Storage space

When choosing between an M.2 SATA and a 2.5-inch SATA SSD, consider the amount of storage space you need. M.2 SATA SSDs are typically available in smaller sizes (up to 2TB), while 2.5-inch SATA SSDs can go up to 4TB or more. Check if your motherboard or laptop has additional slots for either type of SSD if you plan on upgrading your storage in the future.

Have you been looking for the ideal SSD?

Overall, it's important to consider all of these factors before making a decision on which type of SSD to choose.

our P3 and P4 series of 2.5-inch SATA SSDs and NT series of M.2 SATA SSDs are among our best-selling products. As a professional supplier, we understand that choosing the right SSD can be challenging. Therefore, we encourage you to reach out to us if you need any assistance in selecting the most suitable product for your needs. Our team will be happy to recommend the best product for you.


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