Manual - M3 Flatpack Kit
What's in the box




Included in the kits:
- Front Panel
- Rear Panel
- Top Panel
- Bottom Panel
- Side Panels:
Either Mesh Side Panel x2
OR
Mesh Side Panel x1 & Window Side Panel x1 - Motherboard Tray
- Fan + Radiator Bracket
- Power Supply Bracket - SFX
- Power Supply Inlet Cable (Right Angle)
- Screw Bag
NOT included in the kits:
Screws for assembly
Do NOT Overtighten The Screws! — Stop turning once resistance is felt; do not exceed one-quarter turn.
🧭 Tip: Fasteners differ in length and head shape. Lining them up side by side can help with identification.
Use the Mat
Build on the included mat to protect panels from scratches!
Optimize Airflow


For less dust, set intake airflow through the Side Panels with dust-filtering holes, and exhaust through the Top & Bottom Panels.
🧭 Tip: Top/Bottom Panel Intake Setups Are Supported.
Dust filters are available as an accessory for this type of airflow setup.
Install PSU Bracket
Choose either the SFX Bracket or ATX Bracket for installation.
Use your power supply screws to secure the bracket — use 3 screws ONLY to avoid interference.
Secure PSU to MB Plate
Check orientation — the MB Plate's flat side should face the PSU.




Install Motherboard




Install CPU Cooler
Install GPU
🧭 Tip: Plug in the PSU cables to the Motherboard, GPU, and other components before the next step. This will save a lot of hassle later.
Install Rear Panel
The GPU IO Bracket Tabs must be fully inserted into the Rear Panel slot.

Do NOT remove the GPU Lock Bar, removal makes installation harder.

Check the GPU is seated properly before tightening the screws.
Install PSU Inlet Cable
Pass the PSU inlet cable C13 male head through the Rear Panel.
Install the Front Panel

Make sure this screw is aligned with the hole on the ATX/SFX PSU Brackets.

Using a longer screw at this location will damage your power supply!

🧭 Tip: Orient PSU fan away from the solid Front Panel for better airflow.

🧭 Tip: Orient PSU fan toward the vented Front Panel for better airflow.
Install Bottom Panel
Install Fan Bracket

Side Fan Bracket Mount — Remove the Front & Rear Panel Foams.

Side Fan Bracket Mount — Adjust up & down for the best fit.

Top Fan Bracket Mount — Keep the Front & Rear Panel Foams in place.

Top Fan Bracket Mount — Adjust left & right for the best fit.
🧭 Tip: Don’t tighten the screws yet!
Install the Fan Bracket with screws loosely in place.
Install the Top Panel and make sure it opens/closes smoothly.
After checking the Top Panel fit, fully tighten the bracket screws.
Install Side Panels
Insert the bottom edge of the Side Panel into the Bottom Panel slot. If not fully seated, the top panel will not close properly.
Final Step: Install Top panel
Insert the Top Panel’s front edge (tongue) into the Front Panel recess.
🧭 Tip: Make sure both side panels are fully seated first. If misaligned, the top panel won't close properly.
Secure the top panel by inserting the included Thumbscrews into the Rear Panel holes and tightening by hand.
🧭 Tip: These screws prevent accidental sliding or lifting of the top panel during use or transport.
Accessory — High Flow Dual 140 Fan Bracket
Accessory — 15mm Tall Feet
More Details Coming Soon
Accessory — MB & GPU Rear IO Cover
This two-piece MB & GPU IO cover works with M2 and M3. The open-source file is on our 3D Files page.
Accessory — Front IO Cover
Accessory — Grater USB IO Kit
More Details Coming Soon
Accessory — VGPU Kit
More Details Coming Soon