The MMD Vivian and HMX Swift V2 switches are both standard MX mechanical switches of the linear breed. They both feature PA12 top housing, standard stem shape, 2 mm pre-travel, however, they come with different bottom housing (PUM (modified) vs PA30), stem material (UPE (modified) vs LY), actuation (43 g vs 42 g), bottom-out force (48 g vs 50 g), total travel (3.60 mm vs 3.80 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 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. | The HMX Swift V2 is a linear standard MX mechanical switch with PA12 top housing, PA30 bottom housing, and LY stem (standard shape). It features a 22 mm KOS single-stage spring. The 42g actuation occurs at 2mm. The 50g bottom-out occurs at 3.80mm. Light diffuser. New stem mold only. Old housing mold. Factory lubing? Yes! Manufactured by HMX. |
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| Name | MMD Vivian | HMX Swift V2 |
|---|---|---|
| Type | linear | linear |
| Footprint | 5-pin | 5-pin |
| Top housing | PA12 | PA12 |
| Bottom housing | PUM (modified) | PA30 |
| Stem material | UPE (modified) | LY |
| Stem shape | standard | standard |
| Spring | - | 22 mm KOS single-stage |
| Actuation | 43 g | 42 g |
| Bottom-out | 48 g | 50 g |
| Pre-travel | 2 mm | 2 mm |
| Total travel | 3.60 mm | 3.80 mm |
| Lube | Factory lubing? Yes! | Factory lubing? Yes! |
| Designer | - | - |
| Manufacturer | MMD | HMX |
By tracking prices and in-stock status of 30+ well-known keyboard stores worldwide, we can state that the HMX Swift V2 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 MMD Vivian and HMX Swift V2 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!
MMD Vivian sound test | HMX Swift V2 sound test |
No MMD Vivian sound test available. |
Comments on MMD Vivian switches | Comments on HMX Swift V2 switches |
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. | Board-Versatile Acoustics: Adapts from muted thock to bright clack depending on plate/board material. LY Stem Mystery: Proprietary stem material offering low friction and self-stabilization. Unique acoustic profile defies linear norms. HMX Swift — The Switch That Whispers “Thock” in a World of Clack. Subtle nylon “thwip” — ASMR without the sharpness. 42gf actuation balances speed and intentionality for RPGs/MMOs – diykey. |
