MMD Princess Linear Ultra switch
The MMD Princess Linear Ultra (also known as MMD Princess Ultra Thock) is a linear mechanical switch with PC top housing, PA66 bottom housing, and LY stem (standard). 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.

Where to buy MMD Princess Linear Ultra switches?
Here are some notable keyboard shops offering MMD Princess Linear Ultra switches. When available, the prices indicated already include the discount - use the KBDNEWS coupon code at checkout to claim your saving!
Currency:
| Store | Area | Offer | Price | Status | |
|---|---|---|---|---|---|
| MonacoKeys | DE | 3.33 EUR / 10 pcs 5% off, KBDNEWS | 0.39 USD | buy |
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 Princess Linear Ultra data sheet
| Name | MMD Princess Linear Ultra |
|---|---|
| Type | linear |
| Footprint | 5-pin |
| Top housing | PC |
| Bottom housing | PA66 |
| Stem | LY standard |
| Spring | 21.4 mm extended |
| Actuation | 42 g |
| Bottom-out | 48 g |
| Pre-travel | 1.90 mm |
| Total travel | 3.60 mm |
| Lube | Factory lubing? Yes! |
| Designer | unknown |
| Manufacturer | MMD |
Comments on MMD Princess Linear Ultra switches
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.
MMD Princess Linear Ultra alternatives
Here are some notable alternatives to the MMD Princess Linear Ultra, our reference switch. Competitors with comparable specs across parameters like switch type, housing material, actuation and bottom-out forces and travel distances — even color. Not perfect matches but the closest results in order of similarity.
| Sim. | Similar switches | Comparison | ||
|---|---|---|---|---|
| 94% | HMX Emo linear, 5-pin, PC/P2/LY, 40/46gF, 2.0/3.5mm | Compare | ||
| 93% | Keylist Kitty linear, 5-pin, PC/PA66/HPE, 45/50gF, 2.0/3.7mm | Compare | ||
| 93% | Keygeek MZ Z1 linear, 5-pin, PC/PA12 Nylon/LY, 48/53gF, 2.0/3.6mm | Compare | ||
| 93% | MMD Princess Linear V4 linear, 5-pin, PC/PC/LY, 53/60gF, 2.0/3.6mm | Compare | ||
| 92% | Akko Cream Yellow Pro V5 linear, 5-pin, PC/PA66/PA12, 50/55gF, 2.0/3.3mm | Compare | ||
| 91% | HMX Twilight linear, 5-pin, PA12/PA-2/LY, 42/50gF, 2.0/3.9mm | Compare | ||
| 91% | Novaris Studio x Keybay Her Heart linear, 5-pin, PC/PA12 Nylon/LY, 37/48gF, 2.0/3.8mm | Compare | ||
| 91% | HMX Hibiscus linear, 5-pin, PA12/PA66/T3, 42/48gF, 2.0/3.5mm | Compare | ||
| 91% | KTT Hyacinth linear, 5-pin, PC/PA66/POM, 45/56gF, 1.9/3.5mm | Compare | ||
| 91% | YG Studio x HMX Canglan V2 linear, 5-pin, P3/PA66/T2 (mix of POM, LY, and P3 nylon), 42/48gF, 2.0/3.5mm | Compare | ||
| 91% | BSUN x Zuoce Studio Macaron linear, 5-pin, PC/PA66 (30% glass fiber)/POM, 42/47gF, 2.0/3.6mm | Compare | ||
To recap: we were looking for linear mechanical switches possibly with PC top housing, PA66 bottom housing, and LY stem (standard). The 42g actuation occuring at 1.90mm. The 48g bottom-out being at around 3.60mm. Extra: Light diffuser. Factory lubing? Yes! — similar to the MMD Princess Linear Ultra.