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Mantiz MZ-03 Saturn Pro Review

Last Updated on July 26, 2021 by paularo

The new Mantiz Saturn Pro is one of the biggest contenders against the dominant and versatile Razer Core X. it packs a punch coming it at just $300 coming with aluminum construction and good aesthetics.

The external enclosure has more power and features than some top-rated enclosures out there. Here today we are going to share every detail you need to know about the Saturn Pro by Mantiz.

Does the eGFX has what it takes to battle the Razer Core X we are going to put them side by side at some point in this review? I believe the two enclosures are the best budget external enclosure at the moment.

In this comprehensive review we will provide you with all the information you need to evaluate the Razer core X as the best eGPU for you. read on for its key features as well as pointers for selecting the best eGPU for your Laptop.

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Why you need the Mantiz MZ-03 Saturn Pro for your laptop

Using a laptop without a GPU is a difficult task especially when you are into gaming or content creation like photo or video editing. A laptop that doesn’t have a GPU is only suitable for doing basic task and playing 3D games. It is not fast enough and if you start running intensive games and software’s on a laptop without GPU it will always crash.

If you care about speed then you won’t go after a laptop without a GPU. These types of laptops are only suitable for commercial and office works. Sometimes people often buy laptops with high end specs and after a number of years the parts become outdated and worn out.

That’s where the Mantiz MZ-03 Saturn Pro comes in and it can help boost performance of your old laptop. if your laptop has a thunderbolt 3 port then an external graphics card can be used to increase the performce of your laptop. it will allow new and updated games run smoothly on your old laptop. the eGPU technology is still in its early stages and it already works fine with most laptops.

Most people like the comfort of moving their laptops around and with an eGPU you can plug in and run your task. You can unplug your laptop when you are done and move it where ever you want to. You need the Mantiz MZ-03 Saturn Pro because it will power your laptop if you pair it with a very strong GPU.

Selecting the Best eGPU for your laptop

The Mantiz Saturn Pro is an Upgrade coming from the first iteration of eGPU by Mantiz. It has a large build that allows the enclosure to accommodate a large ATX power supply and more space for a graphics card. to open the case, you just have to remove the thumbscrews at the top and slide the inner cage backward.

The enclosure doesn’t have an RGB light like have on some parts of the Razer Core X but it spots a clean look. The stubby L-shaped hooks on the rear fascia provide a better grip. The design is not what we are used to seeing and the handle doesn’t block the graphics card port in any way.

The expansion port row provides quick access for SD cards and USB A peripherals. We have three colorways here to choose from and they include Silver, Space Gray, and Black. The smooth textured aluminum finish looks great in the eye. We have a superb build quality here and it looks better than the Core X in my opinion.

The enclosure has a single aluminum sheet that is joined at the base. We have a rubber pad on the right side and a plastic pad on the other. Opening the enclosure is similar to opening the Razer Core X. we have a plastic rail here and it doesn’t get rusty so lubrication is not required at any point.

When it comes to power we have an 80+ Gold 750W and it supports up to 100W power delivery.  The maximum output for the graphics card is 550W. the Razer Core X maxes out at 650W in terms of power and it is blown away by the Mantiz Saturn Pro.

Saturn Pro has 3x 6+2 PCIe power cables and it can be able to accommodate the most power-hungry GPU that includes the RTX 3090 and beyond. Other cables include one 24-pin to the mainboard, one SATA for the hard drive, and one Molex for another component like the fan controller.

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6 key points for selecting the Mantiz MZ-03 Saturn Pro for your laptop

Compact Build

As far as I am concerned the enclosure is one of the best-looking eGPU. It has an aluminum finish and a matte finish that doesn’t display fingerprint stains. The eGFX is capable of housing even the largest GPU in the market. The cooling system is also amazing and the thermals always keep the enclosure cool when in use. Opening the box is easy and I like the fact that there is no need for lubrication because the rail is made of plastic.

750 Watts Power & Power Delivery

The enclosure has what it takes to power any graphics card that demands lots of power to run efficiently. It also supports 100W of power delivery and this feature allows your laptop to charge while plugged into the enclosure. In this aspect it blows away most of the enclosure it is competing with.


Yes, $300 is not cheap but when you consider the features it packs for that amount then you will know it is one of the most affordable enclosures available. I am surprised with the pricing of the Mantiz Saturn Pro but I feel it is a direct competition with the most popular eGPU which is the Razer Core X.

Plug and Play

The external graphics enclosure has plug and play and this brings it to standard with the top eGFX out there. This feature allows you use the external enclosure the moment you connect it to your laptop. there is no need to reboot your laptop when you connect it to the Mantiz MZ-03 Saturn Pro enclosure.

Future Proof

The external enclosure is future proof because you can swap out cards inside the enclosure. It supports 750W of power meaning even the top end cards will work inside the Saturn Pro. it supports both medium and large sized external cards. There is enough space inside the box and everything sits perfectly when placed inside the enclosure.

Dual Thunderbolt 3 buses

The enclosure has two thunderbolt 3 busses built inside this makes connectivity very fast without any lag. It offers the standard 40Gbps speed while transferring data from the enclosure to your laptop. the enclosure will provide you with the maximum speed needed that will boost your computer.

A closer look at the Mantiz MZ-03 Saturn Pro

There are three USB type A ports, and an SD card reader front. The Saturn Pro is the only enclosure that I have seen with an SD card reader slot. MacBook and Ultrabook users would find the additional SD card slot very important. Because of the large footprint the enclosure came with we have two 120mm fans inside.

They sit on a metal bracket side by side with one being the PSU fan. the fan draws heat from the back of the eGPU and take it outside. There is a fan off mode that keeps the enclosure silent during light usage. We have a metal shield on the thunderbolt 3 mainboard with quick access to the SATA drive.

The external enclosure works well on all the popular operating systems out there. It is compatible with MacOS, Windows, as well as Linux. Performance is very solid depending on the type of GPU you have inside. The enclosure is one of the most fairly priced eGPU in the market and it has a lot of features.

It outshines the Razer Core X in many ways. From power to design and a number of other things. One feature I would have love added on the eGPU is the addition of a type C port on the enclosure. The expansion ports found on the enclosure is unmatched in the industry.

This is the absolute one enclosure that answers a number of questions at a time and Mantiz really did a good job. The level of performance is steady regardless of the pressure you put on the eGFX. Cooling system is great and you can even add an extra fan inside the enclosure if you are good with DIYs.

However, it is very important not to use an NVIDIA card when pairing the eGPU with a MacBook laptop.

About the Mantiz MZ-03 Saturn Pro Manufacturer

Mantiz has been in existence since 2009. The brand started off as a side project integrating leading technology in small quantity for big cooperation’s. later on, they expanded and started making consumer technology products for the general public. Their main target are consumers and small businesses.

Their main aim is to create products that would wow you and entertain you at the same time. They tend to create product at competitive prices for everyone to enjoy.

Mantiz MZ-03 Saturn Pro Product Specifications and Features

  • Dimension – 9.1 x 14.7 x 6.6 inches
  • Weight – 5.70 kg
  • Operating System – Windows 10, MacOS, and Linux
  • Color Options – Silver, Black, and Space Grey
  • Input & Output – Thunderbolt 3 Via type C                                                                               
  • Internal Power Supply – 750W
  • GPU max power support – 550W
  • GPU type – Single double wide, full length, PCl-Express X16

Description of Mantiz MZ-03 Saturn Pro

The Mantiz MZ-03 Saturn Pro is a thunderbolt 3 external desktop graphics enclosure enables full transformation of your compatible laptop into a working-class gaming or working station setup. The thunderbolt 3 enables dedicated lanes for graphics and I/O ensuring fluid gameplay.

The eGPU has all the required energy when paired with a strong GPU. It can be the difference between improved gameplay and faster rendering of videos and images.

The enclosure can house different sizes of GPU and as long as your laptop has a thunderbolt 3 port then connectivity would be seamless between your laptop and the Mantiz Saturn Pro.

Pros of the Mantiz MZ-03 Saturn Pro

Cross Platform – the external enclosure works well across different operating systems. It works well on windows 10, macOS Catalina and above, and also Linux OS. this is very important regardless of the operating system you are running you can confidently use the enclosure.

Internal 750W Power Supply – the eGPU comes with 750W power supply and it supports 100W power delivery. You can charge your laptop via the thunderbolt port while using the external enclosure.  As far as power goes the Mantiz Saturn Pro is actually one of the enclosures that deliver the highest power I have seen. This allows it to accommodate power-hungry GPU.

Compact Build – the external graphics box features a solid design made with aluminum and a matte finish. It has a large footprint and can accommodate large to medium-sized graphics cards. Opening up the enclosure is easy and it has a plastic rail system that doesn’t require lubrication. There are two 120mm fans inside the enclosure and they act as thermals inside the enclosure.

Swappable GPUs – you can choose to use a number of different GPUs because they are compatible with the Mantiz Saturn Pro. you can use either AMD or NVIDIA graphics card inside the enclosure.

Cons of the Mantiz MZ-03 Saturn Pro

No RGB lights – some enclosures like the Razer Core X come with RGB light for a similar price. The RGB light helps set the mood and beautify your desk setup. It might not be a big deal for others but it can be a deal-breaker for some top gamers.  

Lack of Ethernet Port – the enclosure lacks an ethernet port and I feel at this price point it should have ethernet connectivity. Without the port you have to depend on your laptop for network connectivity. There are some external enclosures that are cheaper than this and still offer ethernet connectivity.


Does the Mantiz MZ-03 Saturn Pro come with a GPU?

No, you have to shop from a wide variety of GPUs that will fit inside the enclosure you can use AMD on NVIDIA graphics depending on your operating system. 

Does Mantiz MZ-03 Saturn Pro come with a thunderbolt 3 cable?

Yes, you will get a cable inside the box of the enclosure and the cable is quite long. However, you can get a high-quality thunderbolt 3 cable available on amazon.

Is the Mantiz Pro Saturn Compatible with the 2015 MacBook pro?

Yes, using the thunderbolt 3 port you can successfully connect the MacBook Pro with the Mantiz Pro Saturn. It will also work well with most laptops that have Thunderbolt 3.

Rounding off

The enclosure is a complete value for money when you consider the features it comes with especially at an affordable price. It combines some very important features and it is a direct competition to the Razer Core X and the Core X Chroma. it highlights the evolution of Thunderbolt 3 technology and gives us hope that the prices of external enclosures can be knocked down without too much compromises.

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