In-Win 303C Standard ATX Chassis, Tempered Glass


303C ATX Chassis

  • Exquisitely Modest Aesthetic Design
    303C is a simple, yet elegant computer chassis crafted from steel and tempered glass. The distinctively clean front panel is complemented with a bright LED design to balance the overall appearance.
  • Latest USB 3.1 Gen 2 Type-C
    303C fully supports the motherboards with Front USB 3.1 Gen 2 Type-C solution, allowing users experience the highest data transferring speed and dual-side slot also increases convenience.
  • Radiant Luminosity
    The LOGO is highlighted “Neon” as well as the lucent striped In Win RGB LED I/O Front Panel, these provides users with incredible visual experience. Color match is no longer a dream.
  • Accelerated Tool-less Design
    In Win has set a standard for being an innovative computer hardware company. Mission accomplished with the 303C since it has perfected a tool-less design by being able to remove the beautiful 3mm tempered glass side panel by just pressing the handle.
  • Versatile Cooling Options
    Overall, the 303C can accommodate two radiators (top and rear) and three fans at the bottom providing users with a well-cooled rig. The cool air intakes from the bottom creates efficient air flow for quick heat dissipation.
  • In Win’s Attention to Detail
    The 303C is constructed with 1.2mm SECC, supports 2.5”and 3.5”drive bays, and its separate PSU chamber provides an ideal climate without interfering with the motherboard and graphics card area. The specialized GPU holder can provide extra support to graphics cards. Yet another detail In Win oversees and manufactures to make PC building much easier.



  • 303C


  • Black, White

Case Type

  • Mid Tower

Case Material

  • Tempered Glass, SECC

M/B Compatibility

  • 12″ x 10.7″ ATX, Micro-ATX, Mini-ITX

Expansion Slots

  • PCI-E X 7

Maximum Compatibility

  • VGA Card Length:350mm
  • CPU Heatsink Height :160mm

Front Ports

  • USB 3.1 Gen 2 Type-C
  • 2 x USB 3.0
  • HD Audio

Internal Drive Bays

  • 2 x 3.5″
  • 2 x 2.5“ 2 Pre-installed (Max. up to 3 bays)

Thermal Solution Compatibility

  • 1 x 120mm Rear Fan (with Polaris RGB Fan Included) / 120mm Radiator
  • 3 x 120mm Top Fan (with Polaris RGB Fans Included) / 360mm Radiator
  • 3 x 120mm Bottom Fan

Power Supply Compatibility

  • PSII: ATX12V
    – Length up to 200mm

Product Dimension (H x W x D)

  • 500mm x 215mm x 480mm
  • 19.6″ x 8.4″ x 18.8″

Product Dimension (H x W x D)
with screw & handle height

  • 500mm x 248mm x 480mm
  • 19.6″ x 9.7″ x 18.8″

Package Dimension (H x W x D)

  • 335mm x 610mm x 572mm
  • 13.1″ x 24″ x 22.5″

Net Weight

  • 10.96kg / 24lb

Gross Weight

  • 12.81kg / 28.2lb