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Fast and precise results without compromise

The original Prusa MK4S delivers reliable results for all your projects. Building on the MK4 model, loved by hobbyists and large companies alike, it offers even higher accuracy and print speed. Thanks to its new 360° cooling, high-flow nozzle and numerous firmware optimizations, you will get your 3D models quickly and with premium quality.

Perfect for professionals and beginners

Whether you’re just starting out or have years of experience, the MK4S meets your needs. We’ve designed the interface to be easy to use even for complete beginners, but its reliable performance makes it perfect for professional workshops too. Getting started is super easy: Just take the MK4S out of the box, plug it in, do a quick calibration and start printing in 15 minutes!

Incredible Print Quality

Although the MK4S is our fastest printer to date, it never sacrifices quality for faster print times. Thanks to its fine-tuned features and workflow, it consistently delivers accurate models at amazing speeds, as confirmed by a perfect 30/30 print quality score in TechRadar's review.

Perfect dimensional accuracy

Your creations must be exactly as designed, especially when they require a perfect fit. The MK4S ensures this by delivering exceptionally accurate prints. See the accuracy comparison measured using a CT scan:

360° Cooling – Print without supports

Reduce the need for supports and print faster with less material! Thanks to 360° cooling, the MK4S allows you to print overhangs of up to 75° without supports, significantly reducing printing costs and time. This also simplifies printing flexible materials like TPU, where removing supports is often a challenge.

Solid and durable prints

With the MK4S, you get prints that last. Its new cooling fan and high-flow nozzle provide excellent layer adhesion, making your entire print strong and durable. It comes with a wide range of print profiles that allow you to prioritize higher speed or maximum robustness.

Perfect surface

Your models will be smooth and a joy to look at, as MK4S' print profiles prioritize perfect surface quality. You can adjust the build layer height to match your desired level of detail, printing everything from super intricate models (with a 0.25mm nozzle) to larger objects where detail matters less.

World-class print speed

As Tom's Hardware puts it: The Prusa MK4S is quite fast. It significantly reduces print times thanks to the new cooling fan with a powerful turbine and 360° air supply, as well as the high-flow nozzle that allows for maximized filament flow. Combined with optimized firmware and print profiles, the results are both fast and error-free.

Seamless workflow

You can control your printer(s) remotely. The MK4S includes an Ethernet port and Wi-Fi with NFC setup, so you can manage it from anywhere using the secure Prusa Connect system or mobile app. For maximum security, the printer can also operate fully offline.

Advanced materials

Choose the best filament for your model, MK4S can handle most of them: PLA, PETG, ASA, carbon filled filaments and even the flexible TPU! With its direct drive Nextruder, it tackles TPU with ease, allowing you to create amazing flexible projects. To get the most out of your materials, place the MK4S in an enclosure.

100% privacy

We don't collect information about your prints or your printer's surroundings without consent. We believe that whether you're developing a next-generation space shuttle or just printing silly things for your friends, no organization should be interested in this information. That's why our printers can be found in top companies, universities, and research institutions around the world.
Our printers are primarily designed for complete offline operation without any drawbacks or limitations. You have the option to share data with our technical support and connect your printer to the Prusa Connect remote print management system, but only if you choose to do so. Our code is open source, so you can always check that we are not cheating or stealing your files, even when you are connected to the internet.

Accessories for enthusiasts

The MK4S is compatible with two new optional add-ons for enthusiasts and modders. First, the GPIO “hackerboard” allows you to control external electronics using G-code. And we’ve also introduced an accelerometer add-on for those who have made extensive modifications to the Nextruder. You can find more details on their respective product pages.

Original Prusa MK4 vs MK4S

Every original Prusa 3D printer receives long-term support for years after launch. Not just small bug fixes, but major firmware and hardware upgrades that bring useful new features. And the MK4 is no exception. Compared to the original Prusa MK4, the MK4S brings the following innovations:

• New high-performance 360° cooling system
• High-quality high-flow nozzle as standard*
• Native iOS/Android Prusa app for iOS and Android with easy Wi-Fi setup with an NFC tap
• Improved print speed
• Improved print quality
• New parts printed from Prusament PC Blend Carbon Fiber or injection molded
• Optional accessory: GPIO hackerboard
• Optional accessory: accelerometer for printer modders

Open design - easy maintenance

Our machines are built to last. We operate a massive print farm with over 700 of our printers running 24/7. This means we design our machines to withstand non-stop operation with minimal downtime. The open "bed-slinger" design is the result of 10 years of development and allows the easiest access to all parts without a lengthy disassembly process. No welded or glued parts, everything can be disassembled with a set of Allen keys.

Designed for offline use

The MK4S is designed for native offline use, so if you don't want to use the network services, you don't need to. The printer can be set up completely without internet access, and there are no drawbacks or limitations. The Wi-Fi module can be easily disconnected for environments that require the highest level of security.

Nextruder & the 32-bit platform

The MK4S is built on the in-house developed 32-bit embedded platform and features our next generation extruder, Nextruder.

Additions

MMU3

The MK4 can be enhanced with an optional add-on that allows your single extruder printer to print with up to 5 colors (materials) at the same time. Load the five colors of your choice, slice the object in PrusaSlicer, start the print, and let the MMU3 do the rest.

With all-new plastic parts, reinforced metal parts and firmware built from the ground up, it delivers The MMU3 amazingly multi-material prints faster and more efficiently than its competitors. With 25-35 seconds per filament change and optimized nozzle cleaning, prints are beautifully fast and reliable, and you don't have to worry about cleaning piles of spilled filament residue around your printer all the time.

The MMU3 is up to three times more efficient at handling filament waste compared to other single-nozzle multi-material systems, providing significant cost savings.

Enclosure

If you want to print more advanced technical materials on your MK4, you will find the enclosure really handy. It stabilizes the printer environment, eliminates drafts and odors, and makes the printer even quieter.

An enclosure is not necessary for every type of filament. Most common materials, such as PLA, PETG and even some advanced ones (like PCCF) do not require an enclosure. However, once you start printing with more advanced materials, such as ASA, ABS, PC and the like, the enclosure is the best option for achieving increased temperatures in a stabilized environment, plus the optional high-performance filtration system takes care of ultra-fine particles.

The original Prusa chassis is available with a number of useful additions, such as the advanced filtration system with HEPA filter, LED strip, mechanical lock or fire suppression system.