SM580 Mini-ITX PC Case for 280mm AIOs and 3-slot GPUs
SM580Mini-ITX PC Case for 280mm AIOs and 3-slot GPUs
  • Supports Mini-ITX motherboards
  • Front panel with USB 3.1 Type C (SS+ 10 Gbit/s), USB 3.0 Type A, and Dual Audio Jacks
  • Upper plenum for mounting one 280mm AIO liquid cooler or two 140mm / 120mm liquid coolers
  • Three slot GPUs up to 328mm long, SFX or SFX-L form factor power supplies, 2x 2.5" SSD
  • Optional brackets for up to 5x 3.5" HDDs and/or bottom 120mm radiator
  • Mounts two 140mm fans in bottom for high performance cooling
  • Magnetic dust filters available from Demcifilter
  • Designed and manufactured in the USA by Sliger
Panel Color
Panel Option (GPU Side)
Non-vented solid aluminum panels are available upon request. Color will correspond to "Panel Color" selection above.
Panel Option (Motherboard Side)
Non-vented solid aluminum panels are available upon request. Color will correspond to "Panel Color" selection above.
Front Panel Board Connector
* This option connects both 3.0 A and USB C ports to a single USB 3.0 motherboard header.
**This option splits the USB C and the USB A to their own motherboard headers. The USB C connects to the motherboards "USB 3.2 Gen2 Type E" header, while the USB Type A connects to the standard USB 3.0 19-pin motherboard header.
Riser Cable
*Bifurcation is the technology of splitting a single PCIe 16x 3.0 slot into two PCIe 3.0 16x slots with 8x bandwith on each.
Please confirm compatibility with your motherboard by contacting before purchasing.
Power Supply Cable
* Standard power cable restricts GPU height to 133mm.
** Pigtail power cable mount does NOT restrict GPU height.
Handle Options
280mm Liquid Cooler Options
*These AIO coolers do not feature any RGB lighting or software, and no fans are included.
ASETEK is the OEM liquid cooler manufacturer for the NZXT X62 and Z63, ThermalTake Floe, and Corsair H115i.
This 680LS is the same radiator as the NZXT Z63, with a 6th gen pump, made in the same factory.
Please see ASETEK'S website for additional information.
240mm Liquid Cooler Options
2x 3.5" HDD Bracket
* One HDD bracket limits case to a single 120mm or 140mm AIO / radiator in the top of case. See this picture.
** Two HDD brackets does not allow any radiators or AIO coolers to mount in the top of case. See this picture.
Bottom Fan to 3.5" HDD or 120mm Fan/Radiator Adapter
This bracket allows custom loops to be built with 1x 120mm radiator (27mm thick) and 1x 120mm x 15mm thick fan in the lower front position.
Prefilled 120mm AIOs are not compatible here as AIO hoses will kink on the chassis middle spine.
This bracket can also be used to mount one 3.5" HDD or 120mm fan. If using two of these brackets at the same time for 2x 3.5" HDD it is recommended to get at least one vented side panel as airflow may be constricted.
Add To Cart
Due to changes in refund policies from PayPal and Amazon, all order cancellations are now subject to a 5% order cancellation fee.
Order Cancellations & Returns
Orders typically ship in 3-5 business days. Order ship date estimates are not based on live data, holidays and/or promotions may cause leadtimes to extend.
Please contact or call us 775 356 5595 for updates on estimated ship date.
International shipping calculated in cart. Sliger is not responsible for import duties and/or taxes.


All new cases ordered via the "configure" tab come with power switch, front panel board, feet, panels, riser, and all needed brackets included.
This section is only for adding additional parts to a new order, or for ordering replacement parts for an existing case.

Power Supply Cables & Kits

12" Power Cord
Standard Cord Mount
Pigtail Cord Mount

Chassis Electrical Parts

Single 19-Pin USB FPIO
Power Switch w/ wires
PCIe 3.0 16x Flex Riser
Bifurcated PCIe 3.0 Riser

Chassis Mechanical Parts

Chrome Handle Kit
Black Handle Kit
120mm or 3.5" HDD
2x 3.5" HDD Bracket
4x Black SBR Feet
4x Chrome Feet Set

Individual Panels, Black

Panel, Top, Obsidian Black
Panel, Front, Black
Panel, Vented Side, Black
Panel, Full Window, Black

Individual Panels, White

Panel, Top, White
Panel, Front, White
Panel, Vented Side, White
Panel, Full Window, White

Individual Panels, Grey

Panel, Top, Slate Grey
Panel, Front, Grey
Panel, Vented Side, Grey
Panel, Unvented, Grey
Panel, Full Window, Grey

Technical Specifications

  • Mini-ITX (170mm × 170 mm)
  • Not compatible with Mini-DTX boards such as the ASUS ROG Crosshair VIII Impact AM4
Liquid Cooling
  • AIO Liquid Cooler Compatibility List
  • Click here for full AIO Compatibility Spreadsheet [Google Docs]
  • 1x 280mm AIO or radiator
  • Maximum 328mm x 150mm x 72mm (LxWxH -- 72mm height includes fan and radiator thickness)
  • RECOMMENDED: ASETEK 680LS, NZXT Kraken X61, X62, or Z63, Cougar Aqua 280, ThermalTake Floe Ring 280
  • DIFFICULT: Corsair Hydro H115i Platinum RGB, EVGA CLC 280mm, Corsair H115i Extreme, Fractal Design S28+
  • INCOMPATIBLE: Cooler Master Liquid Pro 280, ARCTIC Liquid Freezer II 280, AORUS RGB AIO 280, be queit! Pure Loop 280
  • 1x 240mm AIO
  • 2x 120mm AIO
  • 1x 120mm + 1x 140mm AIOs (ex: 1x GPU, 1x CPU)
  • 1x 120mm or 1x 140mm AIO with 1x of the optional 2x 3.5" HDD brackets
  • Bottom Fan Plenum
  • 1x 120mm radiator less than 27mm thick with 15mm thick fan
  • Prefilled AIO are not recommended here, recommended for custom loops only.
  • Maximum of 55mm tall CPU pump blocks
CPU Air Coolers
Fan Mounting
  • 2x 140mm fans in bottom plenum
  • Fans can be a maximum of 27mm thick
  • 2x 140mm fans on top radiators or without radiator.
  • Recommended airflow is bottom intake, top exhaust
  • For any (FAN REMOVED) heat sinks listed above both fans must be populated with high static pressure fans
GPU / PCIe Cards
  • Community Generated GPU Compatibility Lists
  • NVIDIA GTX/RTX GPU Compatibility Spreadsheet [Google Docs]
  • AMD Radeon GPU Compatibility Spreadsheet [Google Docs]
  • Supports three(3) slot wide cards with room between side panel and card for airflow
  • Card is mounted behind motherboard on a PCIe 3.0 16x Flexible Ribbon Riser
  • with Standard Inlet
  • Maximum card height: 133mm (157mm for power connectors)
  • Maximum card length: 328mm
  • Maximum card width: 67mm
  • with Pigtail Inlet
  • Maximum card height: 157mm
  • Maximum card length: 328mm
  • Maximum card width: 67mm
  • Bifurcation riser limits the outer PCIe 16x 2.0 card to 2 slots wide, and inner slot to a single slot card.
  • Bifurcation outer slot maximum card width: 47mm
  • (2x) 2.5" SSD/HDD mounting points behind front panel
  • Optional (4x) 2.5" SSD/HDD mounting bracket [replaces 1x 140mm bottom fan]
  • Maximum two brackets for total of 8x 2.5" SSD/HDDs
  • Optional (1x) 3.5" HDD mount bracket [replaces 1x 140mm bottom fan]
  • Maximum two brackets for (2x) 3.5" HDD in bottom of case
  • Optional (2x) 3.5" HDD mount bracket (top of case)
  • Maximum two brackets for total of 4x 3.5" HDDs in top of case
  • Total maximum of (6x) 3.5" HDDs
Power Supply
  • SFX
  • Corsair SF series
  • SilverStone SST-SX series
  • EVGA SuperNOVA GM series
  • FSP Dagger series
  • SFX-L is supported, however it is a very tight fit and not recommended.
  • Sliger recommends a fan guard grill or custom cables if you do go with SFX-L.
Front Panel I/O
  • One USB 3.1 Gen 2 Type C to USB E header (SS+ 10 Gbit/s)
  • One USB 3.0 Type A to 20-Pin Motherboard Header
  • Two Audio Jacks to standard 9-Pin HD AUDIO header
  • Chassis
  • ASTM-A-653 G30 Zero Spangle 20 Gauge Galvanized Steel
  • Side Panels
  • ASTM B209-10 5052-H32 0.080" Aluminum Sheet
  • Feet
  • Cavity Molded 75 Durometer Nonmarking Black SBR
  • Fine texture powder coated chassis and panels
  • Unpainted chassis, panels, or parts available on request (for DIY paint jobs)
  • Optional custom powder coat finishes, MOQ 25 units
  • Case is unbranded on interior and exterior of chassis.
  • Optional logo screen printing (full color) on front panel for business customers, MOQ 5 units
Case Dimensions (LxWxH)
  • 14.05" x 6.10" x 11.30" - LxWxH
  • 357mm x 155mm x 287mm - LxWxH
  • 15.88 Liters
  • Volume includes case feet and all protruding flanges
  • Base Chassis (includes power cord, riser, front panel, top panel, power switch, etc.)
  • 5.50 lbs
  • Window Panels
  • 1.10 lbs each
  • Vented Panels
  • 0.70 lbs each
  • 1x Kensington Lock Cutout
  • Case
  • 5 Year Warranty [Chassis, USB cables, Power Button, Power Cable, PCIe Riser]
  • Liquid Coolers & Fans
  • 3 Year Warranty
  • Please see our warranty policy for additional conditions, exclusions, and limitations.
  • HTS Tariff Code
  • 8473.30.00.02
  • Country of Origin
  • United States of America
Rev Control
  • SM580 V1-A (7/8/19 - 12/31/19)
  • Initial Release
  • SM580 V1-B (1/1/20 - X/X/XX)
  • Removed rear obround vent pattern.
  • Removed 1-inch holes and plastic caps from rear of case.