Cherry LP

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Cherry MX Low Profile
Switch type linear
Sense method Metal contact
Rated lifetime 50M
Pretravel 1.0 mm or 1.2 mm
Total travel 3.2 ± 0.25 mm
Keycap mount Cherry MX mount (Short skirt only)
Switch mount Plate mount
Website www.cherrymx.de/en/mx-low-profile/mx-low-profile-red.html

Cherry LP (community term) or Cherry MX Low Profile RGB (official term) is a low-profile mechanical keyboard switch.

The switch has been designed to have a feel reminiscent of Cherry MX. It is only marginally compatible with its larger official name-sake.

Description

Cherry's goal when designing the switch family was to make a low-profile version of Cherry MX. The size was not reduced as much as it could have been, in order to retain an overall feel reminiscent of Cherry MX.[1]

To accommodate backlighting the bottom housing is translucent and the top is transparent with a crescent-shaped cavity for a surface-mounted LED to shine through. This is supposed to spread the light around the slider.[2]

Variants

Name     Step colour Type Total travel Pretravel Initial force Tactile force Actuation force Bottom-out force
Low Profile Red Red Linear 3.2±0.25 mm 1.2±0.3 mm 40 cN 45±15 cN 60 cN
Low Profile Speed Silver Linear 3.2±0.25 mm 1.0±0.3 mm 30 cN 45±15 cN 60 cN

A clicky Blue variant has also been reported to be in development[1].

Key feel

The starting force of the "Red" switch is 40 cN, which is 10 cN higher than Cherry MX Red but similar to Cherry MX Brown. The force curve is almost flat, with actuation happening at 1.2 mm when a weight of 45 cN is applied. This makes it similar to Cherry MX Speed Silver. The switch named Cherry MX Low Profile Speed, however, actuates even earlier.

According to Rama Works, the switch is more stable on off-centre key presses than Kailh Choc low-profile.[3]

Compatibility with Cherry MX

The switch is not pin-compatible with Cherry MX and the overall travel is lower, at 3.2 mm. It does however fit a 14×14 mm plate hole, at a different height over the PCB.

While it shares the same cross-pattern keycap mount of it's larger name-sake, the keycaps are not entirely compatible. Most keycaps for Cherry MX could mount and be used actuate the switch, but could impact into something when pressed further down:

  • Thicker-walled keycaps (such Cherry/GMK doubleshots and thick PBT) or keycaps that narrow inside nearer the top would hit the switch housing which is wider on top than Cherry MX's.
  • Thinner-walled keycaps (such as OEM profile and those of Cherry MX-Board 3.0) would hit the mounting plate (if there is one) because of the additional skirt height. Vortex opted to make PCB-mounted keyboards that avoids this issue.[4]

Availability

Keyboards:

Upcoming keyboards:

  • Vortex Poker 3 V2, and Vortex 75 v2, with floating key design (PCB-level, plateless)[4]

The Speed switch is exclusive to Corsair at the moment.[5] The Red switch is supposed to get a widespread release in 2019.[3]

Reviews

Resources

Cherry has not made dimensions and pinout public.

  • A KiCAD footprint has been published by Keebio in its Github repo.

References

  1. 1.0 1.1 Gamers Nexus on Youtube: Cherry Finally Makes a New Switch: MX Red Low Profile. Watched 2018-01-13
  2. Tom's Hardware: Cherry Joins The Low-Profile Switch Game, by Seth Colander. Dated 2018-01-12. Retrieved 2018-01-13
  3. 3.0 3.1 Rama.Works—INSTRUMENT LOW-PROFILE / STAB SEQ 2. Dated 2018-07-18. Retrieved 2018-10-21
  4. 4.0 4.1 TaeKeyboards on Youtube—NEW POKER Keyboards! - Vortex Computex 2019. Posted 2019-05-31
  5. SweClockers.com—Corsair släpper tangentbord i K70 MK.2-serien med Cherry MX-brytare i lågprofil (Swedish). Dated 2018-10-25. Retrieved 2018-10-25