The Keygeek Butterfly and MMD Princess Linear Ultra switches are both standard MX mechanical switches of the linear breed. They both feature standard stem shape, 42 g actuation, 48 g bottom-out force, 3.60 mm total travel, however, they come with different top housing (PA66 vs PC), bottom housing (PA12 (with spherical contact point) vs PA66), stem material (U5 UPE (with spherical stem tip) vs LY), spring (19mm/22mm single-stage Japanese wire vs 21.4 mm extended), pre-travel (2 mm vs 1.90 mm). That said, they are only slightly similar. Let's check out this side-by-side specs rundawn with details, availability -- and even current prices -- to figure out which one fits you the best!
The Keygeek Butterfly is a linear standard MX mechanical switch with PA66 top housing, PA12 (with spherical contact point) bottom housing, and U5 UPE (with spherical stem tip) stem (standard shape). It features a 19mm/22mm single-stage Japanese wire spring. The 42g actuation occurs at 2mm. The 48g bottom-out occurs at 3.60mm. Spherical stem tip combined with a spherical contact point in the bottom housing -- for a deep and thocky sound. Factory lubing? Yes! Designed by Suixin Studio. Manufactured by Keygeek. | The MMD Princess Linear Ultra is a linear standard MX mechanical switch with PC top housing, PA66 bottom housing, and LY stem (standard shape). It features a 21.4 mm extended spring. The 42g actuation occurs at 1.90mm. The 48g bottom-out occurs at 3.60mm. Extra: Light diffuser. Factory lubing? Yes! Manufactured by MMD. |
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| Name | Keygeek Butterfly | MMD Princess Linear Ultra |
|---|---|---|
| Type | linear | linear |
| Footprint | 5-pin | 5-pin |
| Top housing | PA66 | PC |
| Bottom housing | PA12 (with spherical contact point) | PA66 |
| Stem material | U5 UPE (with spherical stem tip) | LY |
| Stem shape | standard | standard |
| Spring | 19mm/22mm single-stage Japanese wire | 21.4 mm extended |
| Actuation | 42 g | 42 g |
| Bottom-out | 48 g | 48 g |
| Pre-travel | 2 mm | 1.90 mm |
| Total travel | 3.60 mm | 3.60 mm |
| Lube | Factory lubing? Yes! | Factory lubing? Yes! |
| Designer | Suixin Studio | - |
| Manufacturer | Keygeek | MMD |
By tracking prices and in-stock status of 30+ well-known keyboard stores worldwide, we can state that the MMD Princess Linear Ultra is available at a single shop at the moment, while the Keygeek Butterfly can be found in multiple stores.
Clicking the links below take you to some notable keyboard shops offering Keygeek Butterfly and MMD Princess Linear Ultra switches. When accepted, the prices indicated already include the discount - use the KBDNEWS coupon code at checkout to claim your saving!
Prices, discounts, and stock status are checked regularly; however, changes since the last update cannot be ruled out. Everything here is for informational purposes only. Check the product pages for the latest prices!
Keygeek Butterfly sound test | MMD Princess Linear Ultra sound test |
No MMD Princess Linear Ultra sound test available. |
Comments on Keygeek Butterfly switches | Comments on MMD Princess Linear Ultra switches |
The Keygeek Butterfly linear switch is very unique in two aspects: It comes with not just a spherical stem tip, there is also a spherical contact point in the bottom housing; During the keystroke, the spherical stem tip hits the spherical contact point to create a deep and thocky sound profile. The keygeek butterfly linear switch might be the best thocky sounding keygeek switch so far. After fine tuning the material blend and molding design, the Butterfly switches sound deeper, thockier, and noise free; there is no spring or leaf noise during typing – Unikeys. | The MMD Princess Ultra Thock switches are the latest variant of the MMD Princess Series and were specially designed and manufactured for the Bridge75 keyboard. As usual with MMD Princess, the switches type very well and have an even deeper sound than the Princess V4 – Monacokeys. Produced by the latest mold, the new Princess Ultra switch offers smoother and more consistent typing feedback. We've also improved the factory lubrication and bottom material, elevating the "thock" sound profile to a new level – qwertyqop. |
