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Mechanical vs. membrane keyboards: What’s the difference?

To click, or not to click?

Most keyboards use either a membrane or mechanical switches to actuate the keys. Standard keyboards use a membrane, while most gaming options use mechanical switches. While different switch types perform a similar function, they work in different ways, and each one has its advantages and disadvantages.

These are the differences between membrane and mechanical keyboards.

Membrane keyboards

Image via Razer

Most office keyboards and integrated laptop keyboards use membrane systems for their value and reliability. Membrane keyboards also have better resistance to liquid and dirt than their mechanical counterparts.

How membrane keyboards work

This keyboard type typically has three layers, including two membranes made from rubber with a space between them. The top level has a dome sitting under the keys. If a key is pressed, the dome moves downwards through the empty space to make contact with the bottom layer. When the two parts make contact, they complete a circuit, and the keypress registers. While membrane keyboards come in several types, they all use a version of the above system.

Types of membrane keyboards

Photo by Aaron Siirila

Dome switch keyboards

These keyboards come with most pre-built PCs and are used by office workers worldwide. Some budget gaming keyboards like the HyperX Alloy Core RGB and the Razer Ornata also use membrane keys. They usually have individual keys with spaces between them and use the same system described in the previous paragraph.

Scissor switch keyboards

Scissor switch keyboards have flat keys separated with a plate and are usually standard on most laptops and low-profile options. This keyboard type also uses a rubber dome, but the keys attach to the dome using a scissor-like mechanism. The mechanism is open when the key is in its usual position, and it closes when the key is pressed, pushing down on the dome to register the keypress. Some of the advantages of this system are a shorter travel distance and less actuation force needed to press the buttons. 

Pros

  • Affordable price
  • Quiet operation
  • Lightweight
  • Can be more resistant to liquid and dirt

Cons

  • Can have a mushy, indistinct feel
  • Shorter lifespan
  • Parts cant be replaced
  • Some keypresses dont register (no key rollover)

Mechanical keyboards

Image via Corsair

Mechanical keyboards are usually more technical and more expensive than membrane keyboards. Advanced users and gamers typically prefer using mechanical keyboards. These keyboards dont use membranes, and every key has its own switch to actuate each key. 

Each switch consists of a base, a stem, contact, and a spring. The stem is connected to the keycap and supported by a spring. When the key is pressed, it pushes the stem down to the point of actuation to register the keystroke. Mechanical keyboards often have a distinctive sound upon bottoming out, allowing users to know when the key is pressed.

GIF via Cherry MX

One of the main advantages of mechanical switches is that they allow users to customize the feel of each keypress, including the actuation point, feel, and sound. Cherry MX set the standard for mechanical switches, and other brands, like Gateron and Kailh, make similar options that share compatibility. The most popular variants are the reds, blues, and browns, and they each have unique operations and characteristics. Many reputable gaming keyboards, like the SteelSeries Apex 7 and G513 Carbon, allow users to choose between these popular switch options to suit their preferences.

While many manufacturers use Cherry MX compatible switches, others use proprietary switches. Glorious offers in-house Glorious Panda switches for the GMMK range of keyboards, and Logitech has two lines of mechanical keys called GX and Romer G. HyperX uses a combination of both types. The company offers its keyboards with either proprietary switches or Cherry MX alternatives. 

Common mechanical switch types

Reds

Gamers often favor red switches for their linear feel and smooth operation. Cherry MX Reds require 55 grams of actuation force, with 2 millimeters of pre-travel and 4 millimeters of total travel.

Blues

Blue switches have a distinct tactile feel and make a clicky sound when actuated. Typists and other professionals prefer these louder switches. Cherry MX Blue switches require 50 grams of actuation force and also have 2 millimeters of pre-travel and 4 millimeters of total travel. 

Browns

Brown switches sit between the Cherry MX Blues and Reds. They have a slight tactile bump and are relatively quiet. These switches are a middle ground between the other two types and are ideal for multiple uses. Cherry MX Browns need 45 grams of force to actuate with the same 2 millimeters of pre-travel and 4 millimeters of total travel as the other two types.

Hot swapping

While most mechanical keyboards have the switches soldered onto the board, some options allow users to swap out the switches or use a combination of various switches. These keyboards are becoming more popular, and keyboards like the Glorious GMMK line and Logitech G Pro X offer this feature. Despite its growth in popularity, hot-swap keyboards can be pricey and are only worthwhile for users who will go through the trouble of swapping out the switches.

Pros

  • Replaceable keycaps
  • Easy cleaning due to replaceable keycaps
  • Switches can be replaced by advanced users if damaged
  • Better feedback

Cons

  • Can be noisy
  • Expensive

Innovations

While these are the two main types of keyboards, manufacturers always innovate and develop new products. Razers Huntsman uses optical switches instead of mechanical switches. Optical switches use a light sensor to actuate, and when the key is pressed, the beam passes through the stem causing it to actuate. According to Razer, optical switches are faster than traditional mechanical switches and are more durable due to having fewer moving parts.

SteelSeries has gone in another direction with the Apex Pro range of keyboards that use the companys Omnipoint switches. These mechanical switches have customizable actuation points ranging from 0.4 to 3.6 millimeters for users to tune each keypress to their liking.

The post Mechanical vs. membrane keyboards: What’s the difference? appeared first on Dot Esports.

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