The Original Prusa MK4S is the latest evolution of Prusa Research's flagship - a reliable FDM printer with 360° cooling, a high-flow nozzle, and redesigned firmware, offering top-tier print quality, precision, and speed. Designed, developed, and manufactured in the EU, delivered fully assembled and ready to print within 15 minutes of unboxing.

Fast and accurate results without compromise

The MK4S builds on the proven MK4 model but pushes its capabilities even further. The new 360° cooling, high-flow nozzle, and significantly improved firmware make the MK4S a printer capable of quickly producing even demanding models without sacrificing quality. It is an ideal choice for anyone looking for a reliable workhorse for a home or professional workshop.

Ideal for professionals and beginners alike

Whether you are just starting out with 3D printing or have years of experience, the MK4S is the machine for you. The intuitive controls with a color display and bar menus can be handled by a complete beginner - just unpack the printer, plug it in, run a quick calibration, and you will be printing your first model within a quarter of an hour. At the same time, it delivers such strong performance that advanced users in professional workshops will love it too.

Unmatched print quality

Even though the MK4S is our fastest printer to date, it never sacrifices print quality for speed. Thanks to precisely tuned firmware, print profiles, and quality components, it reliably prints accurate models even at high speeds. This is confirmed by a perfect 30/30 print quality score on TechRadar.

Perfect dimensional accuracy

Your models should be printed exactly as you designed them - especially if they need to fit together precisely. Thanks to the exceptional mechanical rigidity of the frame and precise linear guides, this is no problem with the MK4S. A CT scan accuracy comparison shows that the MK4S is a clear winner over the competition - deviations from the target dimensions are minimal.

360° cooling - print without supports

With the MK4S you need significantly fewer supports, so you print faster and use less material. Powerful 360° cooling allows overhangs of up to 75° to be printed without supports, saving you both time and cost. It also makes it easier to work with flexible materials such as TPU and flexible filaments, from which supports are difficult to remove.

Strong and durable prints

Prints from the MK4S can take a real beating. The new cooling and powerful nozzle ensure perfect interlayer adhesion, making printed models strong and mechanically durable. The printer easily handles technical materials such as ABS, ASA, PETG, nylon, and carbon fiber-filled materials.

Exceptional print speed

As Tom's Hardware states: "The Prusa MK4S is damn fast." Print time is significantly reduced by the cooling system with a powerful turbine and 360° airflow, as well as by the new high-flow nozzle that maximizes filament throughput. Combined with in-house developed firmware and optimized print profiles, your prints will be finished quickly and without printing defects.

Perfect surface and fine details

The MK4S print profiles target a flawless surface - the resulting prints will be beautifully smooth and defect-free. You can adjust the level of detail yourself using the print layer height. This allows you to print everything from highly detailed models (with a 0.25 mm nozzle) to larger objects where details matter less. Prints require minimal post-processing.

Proven reliability

Around 10,000 3D printers leave the Prusa Research factory in Prague each month, and production has now also begun in the USA. Over half a million Original Prusa printers are in use worldwide, and only about twenty units per month come in for service - the return rate stays below 1%. Support, spare parts, and firmware updates are a matter of course.

Technical specifications

Package contents

Fully assembled Original Prusa MK4S 3D printer, mains power cable, USB flash drive with manuals and test models, sample of Prusament PLA filament for the first print, satin PEI print sheet (installed), tool kit and spare parts, printed quick start user guide, Prusa card with a set of adhesives. The printer is tested before shipping and ready for immediate use.