The Keygeek Cera X and MMD Vivian switches are both standard MX mechanical switches of the linear breed. They both feature standard stem shape, 48 g bottom-out force, 2 mm pre-travel, however, they come with different top housing (L4+ vs PA12), bottom housing (X2 (POM+ceramic powder) vs PUM (modified)), stem material (L4 vs UPE (modified)), actuation (42 g vs 43 g), total travel (3.70 mm vs 3.60 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 Cera X is a linear standard MX mechanical switch with L4+ top housing, X2 (POM+ceramic powder) bottom housing, and L4 stem (standard shape). It features a 20 mm spring. The 42g actuation occurs at 2mm. The 48g bottom-out occurs at 3.70mm. Factory lubing? Yes! Designed by Gearpod. Manufactured by Keygeek. | The MMD Vivian is a linear standard MX mechanical switch with PA12 top housing, PUM (modified) bottom housing, and UPE (modified) stem (standard shape). The 43g actuation occurs at 2mm. The 48g bottom-out occurs at 3.60mm. Extra: Light diffuser. Factory lubing? Yes! Manufactured by MMD. |
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| Name | Keygeek Cera X | MMD Vivian |
|---|---|---|
| Type | linear | linear |
| Footprint | 5-pin | 5-pin |
| Top housing | L4+ | PA12 |
| Bottom housing | X2 (POM+ceramic powder) | PUM (modified) |
| Stem material | L4 | UPE (modified) |
| Stem shape | standard | standard |
| Spring | 20 mm | - |
| Actuation | 42 g | 43 g |
| Bottom-out | 48 g | 48 g |
| Pre-travel | 2 mm | 2 mm |
| Total travel | 3.70 mm | 3.60 mm |
| Lube | Factory lubing? Yes! | Factory lubing? Yes! |
| Designer | Gearpod | - |
| Manufacturer | Keygeek | MMD |
By tracking prices and in-stock status of 30+ well-known keyboard stores worldwide, we can state that the Keygeek Cera X is much more widely available, but the MMD Vivian is also available in stores.
Clicking the links below take you to some notable keyboard shops offering Keygeek Cera X and MMD Vivian 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 Cera X sound test | MMD Vivian sound test |
No MMD Vivian sound test available. |
Comments on Keygeek Cera X switches | Comments on MMD Vivian switches |
Keygeek Cera X switches are brand new Cera switches from Keygeek. Featuring brand new molds and ceramic infused POM materials for a smooth type feel and crisp sound profile – Divinikey. | MMD Vivian linear switch delivers a satisfying thocky sound profile. The switch features a modified UPE stem that enhances durability. Its top housing is constructed from PA12, while the bottom housing uses modified PUM – Lume Keebs. |
