Buying Guide
The Best PC Cases for Large Radiators
Five PC cases ranked on radiator size and fans included; the H9 Flow White is the cheapest route in.
By The PC Journal editorial team
12 min read5 products evaluated
A 360mm or larger radiator is the usual choice for hot CPUs, but it needs both the mounting length and depth above the board. Every pick fits one, ordered by the largest radiator it takes.
We ranked these PC cases on largest radiator, fans included and motherboards using manufacturer specifications; where a maker leaves out fans included, we say so rather than guess, since we have not benched them.
Quick Picks
Our 5 recommendations at a glance. Tap a pick for the full verdict.
Also Consider
Phanteks Enthoo Pro 2 Server V2 Full Tower
All-metal mesh panels.
Best for: Buyers who want all-metal mesh panels.
Our take Check price for Phanteks Enthoo Pro 2 Server V2 Full Tower (opens in a new tab)
Premium Pick
CORSAIR 9000D RGB Airflow
The top of this price range, adding mounts for up to 18 120mm fans.
Best for: Spending more for the fullest feature set.
Our take Check price for CORSAIR 9000D RGB Airflow (opens in a new tab)
Lowest Price Here
NZXT H9 Flow White
The lowest price of the group at our last check.
Best for: Keeping the budget tight.
Our take Check price for NZXT H9 Flow White (opens in a new tab)
Strong Alternative
NZXT H9 Flow (2025)
A dual-chamber layout that moves the PSU and drives behind the motherboard.
Best for: Buyers who want dual-chamber layout that moves the PSU and drives behind the motherboard.
Our take Check price for NZXT H9 Flow (2025) (opens in a new tab)
Worth a Look
Antec Flux Pro
A 420mm and a 360mm radiator at the same time.
Best for: Buyers who want 420mm and a 360mm radiator at the same time.
Our take Check price for Antec Flux Pro (opens in a new tab)
| Pick | Why it’s here | Best for | Price |
|---|---|---|---|
| All-metal mesh panels. | Buyers who want all-metal mesh panels. | Check price for Phanteks Enthoo Pro 2 Server V2 Full Tower (opens in a new tab) |
| The top of this price range, adding mounts for up to 18 120mm fans. | Spending more for the fullest feature set. | Check price for CORSAIR 9000D RGB Airflow (opens in a new tab) |
| The lowest price of the group at our last check. | Keeping the budget tight. | Check price for NZXT H9 Flow White (opens in a new tab) |
| A dual-chamber layout that moves the PSU and drives behind the motherboard. | Buyers who want dual-chamber layout that moves the PSU and drives behind the motherboard. | Check price for NZXT H9 Flow (2025) (opens in a new tab) |
| A 420mm and a 360mm radiator at the same time. | Buyers who want 420mm and a 360mm radiator at the same time. | Check price for Antec Flux Pro (opens in a new tab) |
Our Picks
Also Consider1 of 5
Phanteks Enthoo Pro 2 Server V2 Full Tower on Amazon (opens in a new tab)
What the Enthoo Pro 2 Server brings to the table is all-metal mesh panels, plus support for 480mm and 360mm radiators and 11 PCI slots.
Best for
- Buyers who want all-metal mesh panels.
Skip if
- If budget leads, the H9 Flow White was cheaper at our last price check.
Why we like it
It also offers a 480mm largest radiator size. It takes SSI-EEB boards, 480mm and 360mm radiators, 11 PCI slots and up to 10 hard drives. Up to 15 fans fit, three of them aimed straight at the CPU and PCI area.
It is built for workstation and server systems as well as gaming. You also get room for up to 10 HDDs or 11 SSDs. Confirm GPU length for the Enthoo Pro 2 Server with its maker.
Before buying, weigh one limit: costs more than the H9 Flow White at the time of writing. When we checked, only the Flux Pro and cheaper picks cost less, and the 9000D cost more.
Key dimensions & specs
- Largest radiator: 480mm
- Motherboards: Up to SSI-EEB
Pros
- Fits a 480mm radiator
- All-metal mesh panels
- Support for 480mm and 360mm radiators and 11 PCI slots
- Room for up to 10 HDDs or 11 SSDs
Cons
- Costs more than the H9 Flow White at the time of writing
Premium Pick2 of 5
CORSAIR 9000D RGB Airflow on Amazon (opens in a new tab)
The 9000D is a super full tower with mounts for 18 120mm fans and 480mm radiators at the front and roof.
Best for
- Spending more for the fullest feature set.
Skip if
- Skip it if price comes first: the H9 Flow White cost less when we checked.
Why we like it
It is the case for dual-loop builds that nothing smaller can hold, with further radiator mounts of 360mm on the side and 240mm at the rear. The maker doesn't state an included fan count, so budget for fans on top of the case price. It matches the Enthoo Pro 2 Server on largest radiator size (480mm).
It also offers an aluminium InfiniRail fan mount. Confirm GPU length for the 9000D with its maker. The 9000D takes 480mm radiators; mind RAM height. At our last price check it topped the group, with the Enthoo Pro 2 Server the nearest cheaper option.
Key dimensions & specs
- Largest radiator: 480mm
Pros
- Fits a 480mm radiator
- Mounts for up to 18 120mm fans
- 360mm side and 240mm rear radiator mounts
- Aluminium InfiniRail fan mount
Cons
- Costs more than the H9 Flow White at the time of writing
Lowest Price Here3 of 5
NZXT H9 Flow White on Amazon (opens in a new tab)
The H9 Flow White is NZXT's larger dual-chamber case, with four fans included and room for up to ten.
Best for
- Keeping the budget tight.
Skip if
- Choose another pick if you can't accept this: largest radiator size of 420mm, behind the Enthoo Pro 2 Server (480mm).
Why we like it
It fits a 420mm radiator behind wraparound glass. Its dual-chamber layout hides the PSU and drives, and three F140Q fans come pre-installed. Perforated steel panels feed air to high-power builds.
It matches the H9 Flow and the Flux Pro on largest radiator size (420mm). Confirm GPU length for the H9 Flow White with its maker. The H9 Flow White takes 420mm radiators; mind RAM height.
No other pick here cost less at our last price check, and the H9 Flow was closest. What it gives up: largest radiator size of 420mm, behind the Enthoo Pro 2 Server (480mm); by contrast, the Enthoo Pro 2 Server comes in at 480mm.
Key dimensions & specs
- Largest radiator: 420mm
- Fans included: 4
- Glass: Wraparound tempered glass
Pros
- Fits a 420mm radiator
- 4 fans included
- Wraparound tempered glass
- White dual-chamber layout
Cons
- Largest radiator size of 420mm, behind the Enthoo Pro 2 Server (480mm)
Strong Alternative4 of 5
NZXT H9 Flow (2025) on Amazon (opens in a new tab)
The H9 Flow moves the power supply and drives into a rear chamber, leaving the main compartment for the motherboard, GPU and radiators up to 420mm.
Best for
- Buyers who want dual-chamber layout that moves the PSU and drives behind the motherboard.
Skip if
- Price-first buyers should look at the H9 Flow White, which cost less when we checked.
Why we like it
Four fans are included, three of them angled 140mm intakes. The dual-chamber layout separates the PSU and drives from the main components, and three F140Q fans come pre-installed. Angled front-right fans aim air at the GPU.
It matches the H9 Flow White and the Flux Pro on largest radiator size (420mm). You also get perforated steel panels. Confirm GPU length for the H9 Flow with its maker.
The H9 Flow takes 420mm radiators; mind RAM height. Another plus is wraparound tempered glass. It was priced above the H9 Flow White and below the Flux Pro at the time of writing.
Key dimensions & specs
- Largest radiator: 420mm
- Fans included: 4
- Glass: Wraparound tempered glass
Pros
- Fits a 420mm radiator
- 4 fans included
- Wraparound tempered glass
- Dual-chamber layout that moves the PSU and drives behind the motherboard
Cons
- Costs more than the H9 Flow White at the time of writing
Worth a Look5 of 5
Antec Flux Pro on Amazon (opens in a new tab)
The Flux Pro includes six fans, the most in this guide, and takes a 420mm and a 360mm radiator together.
Best for
- Buyers who want 420mm and a 360mm radiator at the same time.
Skip if
- Skip it if largest radiator size matters most to you; the Enthoo Pro 2 Server offers 480mm.
Why we like it
Two reverse fans sit on the PSU shroud to feed the graphics card, and a display shows CPU and GPU temperatures. The power supply mounts rotated 90 degrees, and the case takes E-ATX boards. It mixes metal, glass and wood, and removable brackets on the top, front and shroud make radiators easier to fit.
It matches the H9 Flow White and the H9 Flow on largest radiator size (420mm). Confirm GPU length for the Flux Pro with its maker. Boards: E-ATX.
It was priced above the H9 Flow and below the Enthoo Pro 2 Server at the time of writing. It gives ground on largest radiator size, where the Enthoo Pro 2 Server comes in at 480mm.
Key dimensions & specs
- Largest radiator: 420mm
- Fans included: 6
- Motherboards: E-ATX
Pros
- Fits a 420mm radiator
- 6 fans included
- 420mm and a 360mm radiator at the same time
- Two reverse fans on the PSU shroud
Cons
- Largest radiator size trails the Enthoo Pro 2 Server (480mm)
- Costs more than the H9 Flow White at the time of writing
How We Chose These PC Cases for Large Radiators
Each pick was assessed across 4 criteria weighted for real-world use.
- Build features
- We recorded front USB-C, glass panels and layout features such as dual chambers.
- Size
- We noted motherboard support and, where the maker states it, the case volume.
- Cooling layout
- We checked radiator sizes and positions, fan mounts and how many fans come in the box.
- Hardware fit
- We compared listed GPU length, CPU cooler height and power supply limits.
What to Look for in a PC Case for Large Radiators
Key buying criteria so you get the right fit the first time.
Match cooler height to the case
Every case offers a maximum CPU air cooler height. Tall dual-tower coolers need about 160mm to 170mm; small cases may take only a low-profile cooler or an AIO.
Mesh fronts and included fans
Mesh or perforated front panels breathe more easily than solid or glass fronts. Included fans save money; a case with none needs at least two or three before it is ready to use.
Check motherboard size and connector layout
Mini-ITX, Micro-ATX and ATX boards need matching cases. Back-connect boards, which put their connectors on the rear, need a case with cutouts for them.
Confirm the power supply format
Most mid-towers take ATX power supplies, often with a length limit. Small cases may need SFX or SFX-L units, which cost more at the same wattage.
Check GPU length and thickness
Large graphics cards run past 330mm and take three or four slots. Compare your card with the case's GPU length figure, and note that front fans or a front radiator often cut it.
Vertical mounts need a riser cable and more width.
Plan radiator positions early
A case may list a 360mm radiator only at the front or only on top. Top mounts must clear the motherboard heatsinks and tall RAM, and front mounts can shorten the GPU limit.
How to Choose a PC Case for Large Radiators
By priority
| Priority | Consider | Why |
|---|---|---|
| Buyers who want all-metal mesh panels | Enthoo Pro 2 Server | All-metal mesh panels |
| Spending more for the fullest feature set | 9000D | The top of this price range, adding mounts for up to 18 120mm fans |
| Keeping the budget tight | H9 Flow White | The lowest price of the group at our last check |
| Buyers who want dual-chamber layout that moves the PSU and drives behind the motherboard | H9 Flow | A dual-chamber layout that moves the PSU and drives behind the motherboard |
| Buyers who want 420mm and a 360mm radiator at the same time | Flux Pro | A 420mm and a 360mm radiator at the same time |
Scroll sideways to see every column.
Key specs side by side
Figures as each maker states them.
| Case | Largest radiator | Fans included | Motherboards | Glass |
|---|---|---|---|---|
| Enthoo Pro 2 Server | 480mm | Not listed | Up to SSI-EEB | Not listed |
| 9000D | 480mm | Not listed | Not listed | Not listed |
| H9 Flow White | 420mm | 4 | Not listed | Wraparound tempered glass |
| H9 Flow | 420mm | 4 | Not listed | Wraparound tempered glass |
| Flux Pro | 420mm | 6 | E-ATX | Not listed |
Scroll sideways to see every column.
By price at the time of writing
Prices change often; these tiers reflect Amazon prices when this guide was updated.
| Price tier | Cases |
|---|---|
| About $100 to $150 | H9 Flow White, H9 Flow, Flux Pro |
| About $150 to $250 | Enthoo Pro 2 Server |
| About $500 to $1000 | 9000D |
Frequently Asked Questions
How do these PC cases compare on radiator size?
The Enthoo Pro 2 Server, at 480mm. The 9000D follows at 480mm, while the Flux Pro has 420mm.
Which is the cheapest pick in this guide?
Start with the H9 Flow White, the lowest-priced pick when we checked. The 9000D is the premium end, so the spread between them shows what extra money buys here.
Does a glass front make a PC run hotter?
It can, when air has to enter through narrow gaps. Glass-front cases that take air from the side or bottom avoid most of that penalty.
How many case fans do I need?
Two intakes and one exhaust suit most builds. Add more for a hot graphics card or when a radiator sits in an intake position.
What is a back-connect case?
One with cutouts for motherboards that put their power and data connectors on the rear. It hides cables but needs a compatible board.
Bottom Line
Our first pick is the Enthoo Pro 2 Server, chosen for all-metal mesh panels. Look at the 9000D for the top of this price range, adding mounts for up to 18 120mm fans, the H9 Flow White for the lowest price of the group at our last check and the H9 Flow for a dual-chamber layout that moves the PSU and drives behind the motherboard if those matter more to you.
Check whether the radiator fits at the top with tall RAM installed.