Skip to product information
1 of 15


MASS - Stackable NAS ITX Enclosure

MASS - Stackable NAS ITX Enclosure

Regular price $40.00 AUD
Regular price Sale price $40.00 AUD
Sale Sold out

Introducing MASS

The Modular Attached Storage Stack is a compact 3D printed NAS enclosure with expandable storage support up to 13 drives! Delivered by instant download, MASS is a digital product of ready to print files with limitless color options, unlimited spare parts and ongoing updates.


  • Modular Body
    Stackable Drive expansion up to 10x 3.5” + 3x 2.5” drives.
  • Fully 3D Printable
  • 210x210mm Print Volume 
  • Vertical design
    Minimal foot print with straight up airflow using 140mm fans.
  • Customizable
    Add a display or other Official MODs.
  • Simple assembly
    Minimum Parts, Maximum Strength. 1 screw type for all.
  • Easy access
    Individual drive access with large bay doors.


Drive Bays Up to 10x3.5” + 3x2.5" 4x3.5”+ 3x2.5"
PCI-E Slot 1 Slot Low-Profile NA
Fans 4x 140mm or 120mm 3x 140mm or 120mm
Motherboard ITX ITX
CPU Cooler 66mm tall 55mm tall
Printer Requirements Min. Bed 210x210, 240°C Nozzle Min. Bed 200x200, 240°C Nozzle
Core Size (APU) 210x199x162mm 6.7L 203x199x151mm 6.1L
Bay Module 199x162x150mm 4.8L 199x150x150mm 4.5L
Display Mod 5", 7" Display, Adjustable Template included 5" Display, Adjustable Template included
Additional 2.5" Bays Optional mounts for 2x2.5" drives in a 3.5" bay NA
Mechanical PBT Optional: use keyboard switch as power button. NA
Handles Low profile and standard options NA

Required Hardware

Screws: M3x20 (40pcs) - Link
Power Button: Ø16mm - Link

PC Parts List:

Download FREE Version on Printables here:




How much does it cost to print?

1-2kg of filament. MASS is tested on generic PETG. You can typically find 1kg rolls for $13/kg each (Link), $12/kg if you buy 4 (Link), $10/kg if you buy 10 (Link)

Premium vs Free difference?

Premium has PCIE slot support, holds 5 drive per caddy, supports up to 13 drives, has handles, extra 2.5” drive adapters, Flex PSU bracket, addon Fan modules and ongoing updates. It supports development of more awesome designs.

Can Free version use premium modules?

No. MASS Free Version was the original model without PCIE slot, making it slimmer by 11mm on the width of the tower, and thus not compatible with the PCIE equipped Premium model.

MASS Free is still a potent enclosure with 4x3.5” bay support and can technically stack up to 8 drive bays using M.2 HBA.

Is MASS durable?

MASS is built with an intimate understanding of the non-anisotropic strength properties of FDM. The parts are appropriately designed to overcome layer splitting issues by orientation and print settings. MASS development is committed also to ongoing improvement to ensure it is a durable and reliable option for your NAS setup.

How to connect more than 4 drives?

To expand the beyond the 4 sata ports on most ITX motherboards, you can install a Low profile PCIE SATA card on the premium model. You can also use an m.2 SATA controller to add a few more.

Release Notes

MASS v1.2 - April 24, 2024

For both FREE and Premium versions:

  • • New side panels with integrated displays
  • • Adjustable CAD templates for side panels
  • • HDMI / USB passthrough added to rear
  • • New 2-Split Bays module added
  • • Tool-less Drive retainer added
  • • Optional screw and locknut option for drive retainer
  • • Bays module has improved clearances for SATA connectors

Note: The old single body Bays module is now in the optional folder. All updates are backwards compatible.

MASS v1.1 - March 6, 2023

Free Version:

  • • Fan module for adding an extra fan to your build.
  • • Slat design Hat to go with the new fan module.
  • • Improved print files.

Premium Version:

  • • New model with PCIE Slot support.
  • • Adapter for mounting 2x 2.5" in drives.
  • • Flex ATX PSU support.
  • • 5 Bay caddy.
  • • Improved print files
  • • Improved Bay cover.
View full details

    Includes 3 Sizes, MATX, ITX and APU - Simple Assembly

    Shop now 

    Unique compact ITX PC case. Sandwich layout. 3 sizes included.

    Shop now 

    MODCASE Hydra is a Carbon Fiber PC Case building blocks kit.

    Shop now 

    MODCASE TIGER is a modular PC case made from machined Carbon Fiber.

    Shop now