M.2 SSD Storage Pros and Cons and an M.2 Explanation

Matthew Lui

In the past few decades, we’ve seen computer storage improve from the 2 square meter products of IBM to modern flash drives.

The M.2 form factor brings the size of solid state storage to the size of the USB stick and opens up new data transfer interfaces that could be the next step forward in the consumer market.

M 2

If you’re considering an M.2 drive for your next computer, here’s what you need to know.

M.2 Pros

1. More Speed!

If you’ve ever switched an SSD for a HDD, you know the effect some better storage can have on your experience.

Some M.2 SSD’s are designed for the PCIe connector, which has far more potential than the previous standard for SSD's, SATA. Add that to the sheer difference in speed of SSD technologies, and you’ll find that reasonably priced M.2 SSD’s can fetch you 15x the speed of the fastest hard drives.

You’ll also be able to find some M.2 SSDs that take advantage of the NVME protocol, which offers much lower latency.

Operating systems such as Windows utilize your computer's storage all the time, so an upgrade will make everything feel smoother. The difference will also be evident in the improved computer boot times and shortened video game load screens.

2. Compact Form Factor

M.2 has actually been used as storage in notebooks and laptops for years, but, we never saw the speed difference because it still used the old SATA connectors.

Types Of Ssds

Typical 2.5 inch SSDs are about the size of your entire hand, but most M.2 SSDs could lie on two or three fingers. Better yet, M.2 connectors plug right into the motherboard, so there’s no need for extra cabling.

M.2 drives reduce the weight of SSDs from 50g to around 7 grams, about the weight of a leaf on a tree.

If you’re making a portable build, then an M.2 SSD should be a serious consideration to reduce space and weight.

3. It's the future

All three innovations, M.2, PCIe storage and NVME, are all expected to dominate the consumer market in a few years.

We’ve seen new M.2 projects come out of all the major storage manufacturers, including Samsung, Intel and Western Digital. If you get your hands on a computer that supports M.2 drives, you'll open up plenty of upgrade options in the years to come.

Intel Optane

4. Just as reliable

One of the key advantages of SSD’s over hard drives was that they don't physically degrade and often last longer. M.2 SSD’s work in the exact same way, so unlike many new technologies there’s little long-term risk and their reliability is well known.

M.2 Cons

1. Compatibility Issues

Finding an M.2 drive that will fit your motherboard can be a bit difficult if you’re not familiar with computer hardware.

M.2 drives come with so many complications, we thought we'd list them out:

  • M.2 connectors only support certain ‘keys’, so can only connect to connectors with the same keying.
M2 Faq Q17 Bottom
  • Not all M.2 drives and connection points will support NVME, the faster data transfer protocol.
  • You might need to switch your M.2 drive to PICe mode in your computer BIOS.
  • M.2 drives that use the SATA connection may reduce overall computer performance.

Before you’ll buy, you’ll need to check that your motherboard supports M.2 and explore your connection options and necessary setup steps.

2. Open your wallet

In 2018, you should be prepared to pay up to four times as much per gigabyte as an SSD for an M.2 drive, and more if you want the latest technologies such an Intel Optane.

If you’re upgrading an existing system, it’d be best for you to check if you have any other components that are holding back your performance first.

3. More is on its way

For most consumers, the peak of the price to performance curve is at the 2.5 inch SSD. Unless you feel the need to stay on top of computer performance or have a specialist application, it might be better to wait.

M.2 prices have only recently become reasonable for the upper end of the market, so it’s a few years yet before we see faster technologies take over.

A complex technology

If some of the terms in this article have left you mystified, don't worry. There's quite a lot to the new storage options in the market, so everyone gets a bit overwhelmed.

If you want to learn more about M.2, SSDs, NVME and SATA, check out the article below for a full explanation.

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Matthew Lui

Written By

Matthew Lui

Matt's an Aussie math lover, PC enthusiast and hobby programmer who has applied his interests wherever he can online. You'll find him studying or writing, but gaming when nobody's looking.