Premium high-airflow mid-tower with hinged glass panels, three 140mm ARGB front fans plus a 140mm rear fan, and 420mm radiator support.
SKU: G99.LAN3RX.00
Colour · Black
The Lancool III RGB is Lian Li's premium high-airflow mid-tower, built for everything from big air-cooled rigs to multi-radiator custom loops. Fine mesh covers the front, top and lower side panels, and both 4 mm tempered-glass side panels swing open on hinges for quick access. The Black edition features a hairline brushed aluminium accent, while the White edition has a clean powder-coated finish.
Four 140 mm PWM fans come pre-installed: three ARGB fans at the front for intake and a standard (non-RGB) 140 mm rear exhaust. The included ARGB controller offers 7 colours and 8 lighting modes, including motherboard sync, from the front-panel C and M buttons, and can control up to three more ARGB devices.
Inside there is room for E-ATX boards under 280 mm wide, graphics cards up to 435 mm, air coolers up to 187 mm and 420 mm radiators at the front or top, with support for three 360 mm radiators at once. A modular PSU-shroud bracket, adjustable drive cages, hinged magnetic cable covers and a front I/O that can move to the bottom make it easy to adapt to almost any build.
| Spec | Value |
|---|---|
| Form Factor | Mid Tower |
| Motherboard Support | E-ATX (under 280 mm wide) / ATX / Micro-ATX / Mini-ITX |
| Model | LANCOOL 3R-X (Black) / LANCOOL 3R-W (White) |
| Material | 0.8 mm SGCC steel, aluminium door handles, 4 mm tempered glass (both sides) |
| Side Panels | Hinged 4 mm tempered glass, both sides |
| Dimensions | 526 x 238 x 523 mm (D x W x H) |
| Pre-installed Fans | 3x 140 mm ARGB PWM front, 1x 140 mm PWM rear (non-RGB) |
| Front Fan Spec | 140 mm ARGB PWM, 300 to 1650 rpm, 83.5 CFM, 2.3 mmH2O, 33 dBA |
| Rear Fan Spec | 140 mm PWM, 200 to 1800 rpm, 83.5 CFM, 2.3 mmH2O, 33 dBA |
| Lighting Control | Included ARGB controller: 7 colours, 8 modes (incl. motherboard sync), front C/M buttons, controls up to 3 extra ARGB devices |
| Fan Support | Front 3x 120 / 3x 140 mm, top 3x 120 / 3x 140 mm, rear 1x 120 / 140 mm, above PSU chamber 3x 120 mm; up to 10 fans |
| Radiator Support | Front 360 / 420 mm, top 360 / 420 mm, above PSU chamber 360 mm |
| GPU Clearance | Up to 435 mm |
| CPU Cooler Clearance | Up to 187 mm |
| PSU Support | ATX, under 220 mm |
| Expansion Slots | 8 |
| Storage | Behind tray 2x 2.5" SSD, behind right shroud panel 3x 2.5" SSD, drive cages 4x 3.5" HDD / 2.5" SSD, above PSU chamber 3x 2.5" SSD |
| Front I/O | Power, reset, colour (C) and mode (M) buttons, 2x USB 3.0, 1x USB Type-C, audio (relocatable to the bottom) |
| Dust Filter | Bottom (tray) |
| GPU Bracket | Anti-sag bracket included |
| Colours | Black, White |
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