Lian Li

Lian Li LANCOOL III 3R-X RGB White E-ATX Mid-Tower PC Case (Boxed)

SKU 40335 Brand Lian Li EAN13 4718466011800
Premium mid-tower ATX case with 3x 140mm ARGB front fans + 1x 140mm rear PWM. Full mesh design, hinged tempered glass panels, supports 420mm radiators, E-ATX, up to 12 drives.
PC Cases - Motherboard Support ATX EATX Micro ATX Mini ITX
PC Cases - Radiator Support 360 mm 420 mm
PC Cases - Included Fans 4+
PC Cases - Front I/O Audio Jacks USB A USB C
PC Cases - GPU Orientation Horizontal
PC Cases - Form Factor Mid Tower
PC Cases - Max GPU Length 450+ mm
PC Cases - Color White
PC Cases - CPU Cooler Clearance 170+ mm

The Lian Li LANCOOL III 3R-X RGB in white is a premium mid-tower chassis designed for superior airflow and modularity. It features a full-mesh design on front, top, and bottom panels for optimal cooling, paired with four pre-installed 140mm PWM fans: three ARGB intake fans at the front (300~1650 RPM, 83.5 CFM) and one rear exhaust (200~1800 RPM).

Hinged flip tempered glass panels on both sides provide easy access and stunning views of your build. Supports E-ATX motherboards (up to 280mm wide), GPUs up to 435mm, CPU coolers to 187mm, and extensive storage (up to 12x 2.5" or 4x 3.5" drives). Reversible front I/O includes USB-C, 2x USB 3.0, audio, and RGB controls. Exceptional radiator support: up to 420mm front/top, 360mm PSU chamber.

  • 4x Included 140mm PWM fans (3x ARGB front, 1x rear)
  • Full mesh airflow optimization
  • Hinged tempered glass side panels
  • Supports 420mm AIO or 3x 360mm custom loop radiators
  • 12-drive capacity with modular cages
  • Easy cable management with magnetic covers
  • Reversible I/O panel
  • Dimensions: 523 x 238 x 526 mm
ModelLANCOOL III 3R-X RGB White
MPNG99.LAN3RX.WH
Dimensions (HxWxD)523 x 238 x 526 mm
Motherboard SupportE-ATX (≤280mm), ATX, Micro-ATX, Mini-ITX
Max GPU Length435 mm
CPU Cooler Height187 mm
Included Fans3x 140mm ARGB PWM front (300~1650 RPM, 83.5 CFM, 2.3 mmH2O), 1x 140mm PWM rear (200~1800 RPM, 83.5 CFM, 2.3 mmH2O)
Fan SupportFront: 3x120/140mm, Top: 3x120/140mm, Rear: 1x120/140mm, PSU: 3x120mm (up to 10 total)
Radiator SupportFront: 360/420mm, Top: 360/420mm, PSU: 360mm
StorageUp to 12x 2.5
Expansion Slots8
Front I/OPower/Reset, Light C/M buttons, 2x USB 3.0, 1x USB-C, Audio
Materials0.8mm SGCC, 4mm Tempered Glass (both sides), Aluminum handles
Weight (unboxed)14.1 kg
PSU ClearanceATX ≤220mm
Warranty2 years