• Ncase M3 Round
  • Ncase M3 Round
  • Ncase M3 Round
  • Ncase M3 Round
  • Ncase M3 Round
  • Ncase M3 Round

Ncase M3 Round

Revision 2025.11.24 M3-Grater -The Front and Top panels are pre-installed with dust filters.

 

Variants M3-Round, M3-Grater
Materials Chassis: 2.5-18mm Aluminum, CNC Machined and Anodized
Fan Bracket: 1.0mm Steel, Powder Coated
Side Panels: 1.5mm Aluminum, Powder-Coated
Dimension (cm) 19.2 x 27.0 x 36.6 (without feet/protrusions/screws)
19.2 x 27.4 x 37.2 (including feet/protrusions/screws)
Volume (L) 18.97 (without feet/protrusions/screws)
19.57 (including feet/protrusions/screws)
Weight (KG) 3-5 based on the variant kit/bundle
PCIe Riser Support Please refer to the M3 Builds For More Info
Classic Config: Not Applicable
Flipped Config: Not Applicable
VGPU Config: PCIe X16 4.0 and 5.0
Motherboard Compatibility Please refer to the M3 Builds For More Info
Mini-ITX, Deep-ITX, Mini-DTX, Micro-ATX
CPU Cooler Compatibility Please refer to the M3 Builds For More Info
Classic Config: 168.5mm
Flipped Config: 168.5mm
VGPU Config: 70mm for 4-Slot graphics cards, 90mm for 3-Slot graphics cards
Graphics Card Compatibility Please refer to the M3 Builds For More Info

M3-Round:
Classic Config: 360mm long, 175mm tall, 4-Slots
Flipped Config: 360mm long, 175mm tall, 4-Slots
VGPU Config: 360mm long, 175mm tall, 4-Slots

M3-Grater:
Classic Config: 359mm long, 175mm tall, 4-Slots
Flipped Config: 359mm long, 175mm tall, 4-Slots
VGPU Config: 359mm long, 175mm tall, 4-Slots
Power Supply Compatibility Please refer to the M3 Builds For More Info
Classic Config: SFX, SFX-L, ATX (140mm)
Flipped Config: same as Classic Config
VGPU Config: SFX, SFX-L

Note: ATX Power Supplies up to 160mm deep can fit with some Motherboards and 3-Slot Graphics cards. Please see M3 Builds for more information.
Liquid Cooling Compatibility Please refer to the M3 Builds For More Info
1 x 120 Radiator / AIO
1 x 140 Radiator / AIO
1 x 240 Radiator / AIO
1 x 280 Radiator / AIO based on components

Note: The following Radiator/AIO combinations may be compatible with specific components. Please see M3 Builds for more information.
- 2 x 240 Radiator / AIO
- 2 x 280 Radiator / AIO
- 3 x 240 Radiator / AIO
- 3 x 280 Radiator / AIO
Drive Compatibility Please refer to the M3 Builds For More Info
3 x 2.5" drives based on components
1 x 3.5" drives based on components

Note: Up to 12 x 2.5" drives or 8 x 3.5" drives can be accommodated with specific components. Please see M3 Builds for more information.
Fan Compatibility Please refer to the M3 Builds For More Info
3 x 120mm based on components
2 x 140mm + 1 x 120mm based on components
2 x 180mm + 1 x 120mm based on components

Note: Up to 9 case fans (8 x 120mm + 1 x 92mm, or 6 x 140mm + 2 x 120mm + 1 x 92mm) can be installed simultaneously with specific components. Please see M3 Builds for more information.
Front I/O Power Button
2x USB-A
1x USB-C

Note: The M3-Grater variant does NOT include Front USB IO.

Bigger Than M2, but Still SFF

+2.6cm wider, +1.2cm taller — for far greater build flexibility in the same compact footprint.


High Airflow, Multiple Configs

Supports multiple cooling layouts — all optimized for high-performance builds

  • Classic Config | Bottom ⮕ Rear Airflow

  • VGPU Config | Side ⮕ Top Airflow

  • Flip Config | Up ⮕ Rear Airflow



Two Styles to Fit Your Space

Available in Round Black and Grater Silver, the M3 fits effortlessly your setups