SM580 15.9L Mini-ITX PC Case for 280mm AIOs and 3-slot GPUs
SM58015.9L Mini-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 325mm 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
If you would like to mix and match panel colors, or request a custom color, please contact support at
Additional charges may apply.
Panel Option (GPU Side)
Color will correspond to "Panel Color" selection above.
Panel Option (Motherboard Side)
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 motherboard header, recommended for AMD Ryzen 3.
**This style header is common on many ASUS, Gigabyte, and EVGA Intel Mini-ITX motherboards.
Riser Cable
* Bifurcation is recommended only for advanced users.
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.
Known supported motherboards include Gigabyte Z390 Auros, Z370N; ASRock Z390, Z370, X299, and X99; and most server motherboards.
Please confirm compatability 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
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
Orders typically ship in 1-3 business days.
International shipping calucated 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.

Chassis Electrical Parts

Single 19-Pin USB FPIO
Power Switch w/ wires
C14 to C13 Power Cord
Single PCIe 16x Flex Riser
Bifurcated PCIe 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, Unvented, Black
Panel, Full Window, Black

Individual Panels, White

Panel, Top, White
Panel, Front, White
Panel, Vented Side, White
Panel, Unvented, 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)
Liquid Cooling
  • 1x 280mm AIO
  • Maximum 328mm x 150mm x 72mm (LxWxH -- 72mm height includes fan and radiator thickness)
  • RECOMMENDED: NZXT Kraken X62 or X61, ThermalTake Floe Ring 280, CoolerMaser Nepton 280L
  • DIFFICULT: Corsair Hydro H115i, EVGA CLC 280mm
  • INCOMPATIBLE: Corsair H115i and CoolerMaster Liquid Pro 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
  • Maximum of 55mm tall CPU coolers
  • Coolers that require a Vented Side Panel on the CPU side
  • ID-COOLING IS-60 (55mm) [CLIP VERSION ONLY, do not get the version that has a screw on fan.]
  • AMD Wraith Stealth (54mm)
  • Cooltek LP53 (53mm)
  • Coolers compatible with all side panel types (Unvented, Window, or Vented)
  • Alpenföhn® Black Ridge (47mm)
  • Noctua L9i/L9a
  • Intel Boxed Cooler
  • Cryorig C7 CU
  • Cryorig C7
  • Cooltek ITX30
  • Phanteks PH-TC90LS
  • Silverstone AR05
  • Silverstone AR11
  • SEMI-PASSIVE MODE: requires Unvented or Window panels on both sides
  • Phanteks PH-TC12LS (FAN REMOVED)
  • Noctua NH-L9x65 (FAN REMOVED)
  • Scythe SCSK-1100 Shuriken Rev. B (FAN REMOVED)
  • SCYTHE Big Shuriken 3 CPU Cooler SCBSK-3000 (FAN REMOVED)
  • Thermalright AXP-100H Muscle(FAN REMOVED)
  • Thermalright AXP-100 Copper(FAN REMOVED)
  • Cooltek CR-701 (FAN REMOVED)
Fan Mounting
  • 2x 140mm fans in bottom plenum
  • Fans can be a maximum of 25mm 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
  • 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: 325mm
  • Maximum card width: 67mm
  • with Pigtail Inlet
  • Maximum card height: 157mm
  • Maximum card length: 325mm
  • 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
  • Powder coated chassis and panels
Case Dimensions (LxWxH)
  • 14.05" x 6.10" x 11.30" - LxWxH
  • 357mm x 155mm x 287mm - LxWxH
  • 15.9 Liters
  • Base Chassis (includes power cord and riser)
  • XXX lbs
  • Window Panels
  • XXX lbs each
  • Vented Panels
  • XXX lbs each
  • Unvented Panels
  • XXX lbs each
  • Packaging Material
  • XXX lbs each
  • 1x Kensington Lock Cutout
  • 2 Year Warranty
  • HTS Tariff Code
  • 8473.30.80.00
  • Country of Origin
  • United States of America
Rev Control
  • SM580-A (7/8/19 - X/X/XX)
  • Initial Release
User Build Albums
  • Submit your build log to - we'll feature it here or in the gallery!
Community Links