Mantiz Saturn Pro II MZ-03
Expert rating7 / 10
- Connection Standard:
- Thunderbolt 3
- Storage Bay:
- 1x 2.5" SATA
- Cooling Type:
- Active enclosure fan
Consumercarts is reader-supported. Learn more
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Manufacturer: Mantiz Last updated: September 10, 2026
Mantiz Saturn Pro II MZ-03 (Thunderbolt 3 eGPU Enclosure / Built-in 2.5" SATA Bay / Full-Length GPU Support / ~$299) Review
The Mantiz Saturn Pro II (MZ-03) is a Thunderbolt 3 eGPU enclosure with a built-in 2.5-inch SATA drive bay, support for full-length graphics cards, and a suggested price around $299.
The Saturn Pro II's built-in SATA bay is the feature that sets it apart, most eGPU enclosures are GPU-only, but the Mantiz lets you slot in a 2.5" SATA drive alongside your graphics card, useful if you want your eGPU box to double as expansion storage for a media library or scratch disk without needing a separate external drive taking up another port. At roughly $299 it undercuts the Razer and AKiTiO options on price while adding a feature neither of those offer, the trade-off being a less powerful internal PSU and tighter GPU length limits.
Storage Plus GPU in One Box
If your laptop is already port-constrained, folding drive storage into your eGPU enclosure rather than running a separate external drive is a genuinely practical space-and-cable saver, particularly for media editing rigs where a fast local scratch disk matters.
Comparison to Alternatives
Against our Razer Core X Chroma and AKiTiO Node Titan, both higher-PSU boxes without integrated storage, the Mantiz trades some GPU wattage headroom for the SATA bay and a lower price. Against our ADT-Link UT3G and GPD G1, both minimalist/portable eGPU solutions, the Saturn Pro II sits in between, more self-contained than the ADT-Link, more traditional than the GPD G1's handheld form factor.
Specifications
Identity
| Brand | Mantiz |
|---|
| Model | Saturn Pro II (MZ-03) |
|---|---|
| Interface | Thunderbolt 3 |
| Storage Bay | 1x 2.5" SATA |
| GPU Support | Full-length (limit applies) |
| Suggested Price | ~$299 |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Expert rating7 / 10
A cheaper eGPU box with a storage bay nobody else offers, if you can live with less PSU headroom.
Best for
- Buyers who want integrated SATA storage alongside their eGPU without a separate enclosure.
- Budget-conscious eGPU shoppers who don't need maximum PSU headroom.
Not for
- High-end GPUs that need 650W+ of headroom, this enclosure isn't built for that.
- Anyone who doesn't need the storage bay and would rather save money with a GPU-only box.
FAQs
What are the key specifications of the Mantiz Saturn Pro II MZ-03 (Thunderbolt 3 eGPU Enclosure / Built-in 2.5" SATA Bay / Full-Length GPU Support / ~$299)?
The Mantiz Saturn Pro II MZ-03 (Thunderbolt 3 eGPU Enclosure / Built-in 2.5" SATA Bay / Full-Length GPU Support / ~$299) is a eGPU enclosure from Mantiz. Key specs: Interface Thunderbolt 3, Storage Bay 1x 2.5" SATA, GPU Support Full-length (limit applies), Suggested Price ~$299.
Will the Mantiz Saturn Pro II MZ-03 (Thunderbolt 3 eGPU Enclosure / Built-in 2.5" SATA Bay / Full-Length GPU Support / ~$299) work with my current setup?
The Mantiz Saturn Pro II MZ-03 (Thunderbolt 3 eGPU Enclosure / Built-in 2.5" SATA Bay / Full-Length GPU Support / ~$299) lists Interface is Thunderbolt 3. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.
Who is the Mantiz Saturn Pro II MZ-03 (Thunderbolt 3 eGPU Enclosure / Built-in 2.5" SATA Bay / Full-Length GPU Support / ~$299) best suited to?
It suits buyers who want integrated sata storage alongside their egpu without a separate enclosure., budget-conscious egpu shoppers who don't need maximum psu headroom..
What are the drawbacks of the Mantiz Saturn Pro II MZ-03 (Thunderbolt 3 eGPU Enclosure / Built-in 2.5" SATA Bay / Full-Length GPU Support / ~$299)?
It is a poor fit for high-end gpus that need 650w+ of headroom, this enclosure isn't built for that., anyone who doesn't need the storage bay and would rather save money with a gpu-only box..
Compare and read more
- AOOSTAR AG01 (OCuLink eGPU Dock / 400W Built-In PSU / Open-Frame / Budget Handheld & Mini PC GPU Dock) vs Mantiz Saturn Pro II MZ-03 (Thunderbolt 3 eGPU Enclosure / Built-in 2.5" SATA Bay / Full-Length GPU Support / ~$299)
- AOOSTAR AG02 (OCuLink + USB4 eGPU Dock / 800W Built-In PSU / Open-Frame / Up to RTX 4090) vs Mantiz Saturn Pro II MZ-03 (Thunderbolt 3 eGPU Enclosure / Built-in 2.5" SATA Bay / Full-Length GPU Support / ~$299)
- GIGABYTE AORUS RTX 3080 Gaming Box Rev 2.0 (Pre-Installed RTX 3080 10GB / Thunderbolt 3 / WATERFORCE AIO Cooling / Plug-and-Play) vs Mantiz Saturn Pro II MZ-03 (Thunderbolt 3 eGPU Enclosure / Built-in 2.5" SATA Bay / Full-Length GPU Support / ~$299)
- Mantiz Saturn Pro II MZ-03 (Thunderbolt 3 eGPU Enclosure / Built-in 2.5" SATA Bay / Full-Length GPU Support / ~$299) vs Sonnet eGFX Breakaway Box 650 (Thunderbolt 3 / 650W PSU / 87W Laptop Charging / Double-Wide GPU / Mac-Certified)
- AKiTiO Node (Thunderbolt 3 eGPU Enclosure / 500W PSU / 85W Laptop Charging / Original Node, Pre-Titan) vs Mantiz Saturn Pro II MZ-03 (Thunderbolt 3 eGPU Enclosure / Built-in 2.5" SATA Bay / Full-Length GPU Support / ~$299)