LIAN LI Lancool III — High-performance ATX mid-tower case in black

Overview

This article reviews the LIAN LI Lancool III — High-performance ATX mid-tower case in black (model LANCOOL 3-X). In short, it is an airflow-first case for people who want a long flagship GPU and a 360mm to 420mm AIO in a single mid-tower.

It ships with four 140mm PWM fans (three front, one rear), so you can start building with strong airflow without buying extra fans.

The door handles are aluminum, the exterior and interior panels are 0.8mm SGCC steel, and both side panels are 4.0mm tempered glass.

It fits GPUs up to 435mm, CPU coolers up to 187mm tall and power supplies up to 220mm long, which is generous clearance for a mid-tower. On Amazon.co.Check the retailer's page for the latest user reviews.

There are trade-offs to know before buying: the case is physically large, the included fans are not RGB, and captured prices vary widely between sellers. The sections below cover fit, cooling layouts and where you may need to compromise.

Compatibility Guide

Here are the dimensions that most often cause mistakes.

A few points the table does not capture. E-ATX is not a fixed width, so check your board's spec sheet; workstation boards wider than 280mm will not fit.

ATX and smaller boards are not a concern.

435mm of GPU clearance comfortably fits large graphics cards, but mounting a 360mm or 280mm radiator at the front typically reduces the usable length by the thickness of the radiator and fans. If you want both a long GPU and liquid cooling, mounting the radiator at the top avoids that conflict.

187mm of cooler height is enough for many large dual-tower air coolers, so this case works for air-cooling fans too. With a 420mm top radiator, check RAM clearance: tall heatsinks or RGB memory can collide with the radiator and fans, so compare their heights before buying.

The PSU mounts at the rear and can be up to 220mm long. Adding fans or a radiator on the PSU chamber shrinks the space for spare cables, so a shorter or fully modular PSU makes assembly easier if you plan to use that area for cooling.

Product Info

The Lancool III launched in 2022 as part of Lian Li's Lancool line. Front I/O includes two USB 3.0 ports, one USB Type-C port and one audio jack; the Type-C port needs a matching header on your motherboard.

The four included 140mm PWM fans are non-RGB. The front is mesh, and both glass side panels are hinged, which makes maintenance and cable rework easier.

Radiator support covers the front (360/280mm), the top (360/420mm) and the PSU chamber (360mm). With three possible radiator locations, you can go beyond a single AIO and add custom loops or GPU liquid cooling later.

The warranty is listed as one year, but terms can vary by retailer, so confirm them at purchase.

On pricing, Amazon.co.jp (ASIN: B0B46BGBBN) listed it at ¥69,002 as of June 5, 2026, while an eBay US listing showed $149.95 as of July 2026.

Different dates and regions make a direct comparison imperfect, but the gap is large. The Amazon listing comes from a marketplace seller (Reg shop), and prices can differ widely between sellers, so compare several stores for the current price before buying.

Sales and stock levels also change prices.

Cooling Layouts

The case supports many layouts. Here are three common ones.

• Air cooler plus stock fans: three front intakes and one rear exhaust. With 187mm of cooler clearance, a large air cooler works well without extra fans. This is the simplest layout and the easiest one to keep quiet.
• 360/420mm AIO at the top: the standard choice for high-end CPUs, with the radiator exhausting upward. It does not affect GPU length, but check RAM height with a 420mm radiator.
• Radiator at the front or on the PSU chamber: this keeps the top free, but a front radiator reduces GPU clearance and a PSU-chamber radiator crowds the cabling. It is an advanced layout for cooling both CPU and GPU with liquid.

Whichever layout you choose, the four included 140mm fans give you a solid base, and the money saved on fans can go toward the cooler or other parts.

Who Should Buy

• High-end gamers who want a long flagship GPU (up to 435mm) and a 360mm or larger AIO in one case. The stock fan setup keeps hot components cool.
• Builders who want to choose their own lighting: the non-RGB stock fans leave you free to swap in the RGB fans you like.
• Quiet-PC builders: the 140mm PWM fans work well at low speeds, and motherboard fan curves or a fan controller can keep noise down.
• Long-term upgraders: plenty of storage mounts and three radiator locations let the case grow with your hardware for years.

Alternatives

The Lancool III is often compared with Fractal Design's Meshify 2 and Define 7 and Corsair's 4000D Airflow. Its strengths are the four 140mm fans included out of the box and 420mm top radiator support, which matter most if cooling is your top priority.

The Define 7 is known for its noise-damping design and the quality of its dust filters, so it is worth considering if silence comes first. The 4000D Airflow is more compact and easier to place in tight spaces.

If you want RGB lighting from day one, a case that ships with RGB fans saves you the extra step.

Things to Consider

It is a large case. It is wider than most mid-towers, so measure your desk or rack and check the dimensions on the product page before buying.

The 4.0mm glass panels are hinged but heavy, and hitting an open panel during assembly could break it.

Give yourself plenty of workspace.

Filling every slot gets tight. Fans or a radiator on the PSU chamber reduce the room for cables behind the tray, especially with a non-modular PSU.

A front radiator with a long GPU, or a 420mm top radiator with tall RAM, are also combinations to check in advance.

The stock fans do not light up. If you want RGB, you will need to replace or add fans, which raises the total cost.

If you do not care about lighting, you avoid paying for it. The included fans are good enough to keep as they are.

**Prices vary widely by seller.Check the retailer's page for the latest price. Do not treat one marketplace seller's price as the market rate; compare several stores before ordering.

The spec data conflicts. The auto-extracted spec field lists the drive bays as 2.5-inch x4, while the compatibility data lists a 3.5/2.5-inch cage x4 plus 2.5-inch x6.

If you plan to install many HDDs, confirm the count on the product page. The Lancool III also comes in other colors and fan configurations, so check the product images and model number (LANCOOL 3-X) before ordering.

FAQ

Q. Does it fit E-ATX motherboards?
A. Yes, up to 280mm wide. E-ATX widths vary, so check your board's dimensions.

Q. Is it better for air cooling or an AIO? A.

Both work. Coolers up to 187mm tall fit, and the top takes 360mm or 420mm radiators.

Choose a top AIO for extra headroom on a high-end CPU, or an air cooler with the stock fans for a simpler build.

Q. Are the included fans enough? A.

With four 140mm PWM fans (three front, one rear), most builds can start without extra fans. If you add an AIO, plan the radiator fan placement as well.

Q. Can I use a long GPU with a front radiator? A.

GPUs up to 435mm fit, but a front radiator reduces that clearance. For a long GPU, mount the radiator at the top.

Q. Can I add RGB lighting?
A. The stock fans are non-RGB, so you will need to replace them or add RGB fans.

Product Disclosure (Amazon)

• Manufacturer: Lian Li
• Seller: Reg shop
• Fulfilled by: Reg shop
• ASIN: B0B46BGBBN
• Note: This article covers a manufacturer-made product based on Amazon listing details.