The Original Prusa MK4S kit version is the flagship of the Czech brand Prusa Research and a tireless workhorse for your 3D printing. It offers top-tier reliability, easy operation and top-notch safety features. Thanks to 360° cooling, a High-flow nozzle and reworked firmware, it delivers high-quality prints faster than ever. Designed, developed and manufactured in the EU.

Fast and precise results without compromise

The MK4S builds on the proven MK4 model, which won the hearts of enthusiasts and earned recognition from major companies. The new version is even more accurate and faster. The combination of 360° cooling, a high-flow nozzle and improved firmware raises both quality and printing pace to the next level. Whether you print functional parts from PETG, prototypes from PLA, or stressed components from ABS, the MK4S handles it reliably.

Ideal for pros and beginners alike

Whether you're just starting out with 3D printing or have years of experience, the MK4S is the machine for you. The intuitive interface can be mastered even by an absolute newcomer, while performance and stability will delight professional workshops. The process is simple - assemble the printer following the detailed manual, run a quick calibration, and within moments you'll be printing your first model.

Unbeatable print quality

Even though the MK4S is the fastest printer in the Prusa Research portfolio, it never sacrifices quality for speed. Carefully tuned print profiles, precise mechanics and quality components consistently deliver detailed models even at high speeds. A 30/30 print quality score on TechRadar speaks for itself.

Excellent dimensional accuracy

Your models should print out exactly as you designed them - especially when they need to fit together. The MK4S maintains dimensional tolerance at a top-tier level, which will be appreciated by anyone printing functional parts, spare components or mechanical assemblies. In comparative CT scans, the MK4S emerges as a clear winner.

360° cooling - print without supports

Powerful 360° cooling enables printing overhangs of up to 75° without supports. You'll save a lot of time and material and can more easily print flexible materials such as TPU, from which supports are difficult to remove. Fewer supports mean faster prints and a cleaner surface without post-processing.

Strong and durable prints

Improved cooling and the high-flow nozzle ensure perfect layer adhesion. Prints are strong, rigid and resistant to load. In the print profiles, you choose the trade-off between maximum speed and maximum strength - depending on whether you're printing a prototype, a decorative model, or a functional part from ASA or nylon.

Perfect print surface

The MK4S print profiles are tuned for a flawless surface. You adjust the level of detail using layer height - from highly detailed models with a 0.25mm nozzle to larger objects where speed is the priority. The resulting prints require minimal final finishing.

Exceptional printing speed

"The Prusa MK4S is damn fast," says Tom's Hardware. Print times are cut by a powerful turbine with 360° airflow and a new nozzle that maximizes filament flow. Combined with in-house developed firmware and fine-tuned profiles, you'll get flawless prints in record time.

Proven reliability and service in the Czech Republic

Around 10,000 printers leave the Prusa Research factory in Prague every month, with more than half a million in circulation worldwide. The complaint rate stays below 1%. As the official distributor, we provide a stock in the Czech Republic, support in Czech and professional service.

Kit version

The kit version gives you a complete overview of the printer's mechanics - assembly according to the detailed illustrated manual can be done in one afternoon. You gain deeper insight into how the machine works, which comes in handy for potential maintenance and modifications. The assembled printer has the same quality and warranty as the factory-assembled version.

Technical specifications

Parameter	Value
Model	Original Prusa MK4S
Version	Kit
Technology	FDM/FFF
Print area	250 × 210 × 220 mm
Cooling	360° with turbine
Nozzle	High-flow 0.4 mm (interchangeable)
Max. nozzle temperature	300 °C
Max. bed temperature	120 °C
Print bed	Heated, magnetic, removable steel sheet
Connectivity	USB, Ethernet, Wi-Fi (via NIC add-on)
Display	Color LCD
Automatic calibration	Yes, load cell
Supported materials	PLA, PETG, ASA, ABS, TPU, Nylon, PC, Carbon and more
Filament	1.75 mm
Manufacturer	Prusa Research a.s. (Czech Republic)
EAN	8594173671638
Warranty	24 months (extendable up to 3 years)

Package contents

The complete Original Prusa MK4S kit contains all the components and tools needed to build a fully functional 3D printer:

• Complete set of parts for assembling the MK4S printer
• Nextruder extruder with High-flow 0.4 mm nozzle
• Heated print bed with magnetic steel sheet
• xBuddy control electronics
• Color LCD display
• Power cable and power supply
• Toolkit for assembly and maintenance
• Prusament filament sample
• Printed manual and access credentials for online support