280mm Radiator or 240mm Radiator PC Cases? Compared by Specs
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Choosing between a 280mm Radiator vs 240mm Radiator PC case depends on your build size and cooling needs. Both the NZXT H5 Flow RGB and Jonsbo TK-1 offer tempered glass sides and support AIO liquid cooling. The main difference lies in capacity and form factor. The NZXT model supports larger 280mm radiators and fits ATX motherboards. The Jonsbo unit is a compact Mini Tower limited to 240mm radiators and smaller boards. Your choice hinges on whether you prioritize maximum cooling headroom or a smaller footprint.
Key differences
| Aspect | NZXT H5 Flow RGB Mid-Tower Case | Jonsbo Curved Glass Micro ATX Mini Tower |
|---|---|---|
| Motherboard Support | ATX | Micro-ATX, Mini-ITX |
| Tower Size | Mid-Tower | Mini-Tower |
| Radiator Support | 280mm | 240mm |
| Max GPU Length | 400mm | 280mm |
| Included Fans | 3 fans (2x 140mm, 1x 120mm) | not listed |
Which one should you choose?
Choose NZXT H5 Flow RGB Mid-Tower Case if
- You need to fit large ATX motherboards and high-end GPUs up to 400mm long.
- You want the option to install a 280mm radiator for potentially better cooling performance.
- You prefer a case that comes with pre-installed fans and dedicated GPU cooling.
Choose Jonsbo Curved Glass Micro ATX Mini Tower if
- You are building with Micro-ATX or Mini-ITX boards and want a smaller footprint.
- You plan to use a 240mm AIO cooler and have space constraints.
- You want a compact design that fits easily on a desk or in tight spaces.
Verdict: The NZXT H5 Flow RGB is the better choice if you need room for standard ATX components and larger cooling solutions. The Jonsbo TK-1 suits builders who prioritize a compact size and are using smaller motherboards with 240mm coolers.
Radiator Size and Form Factor
radiator support
The NZXT H5 Flow RGB offers more flexibility for liquid cooling loops. It supports a 280mm radiator in the front position. This allows for larger heat dissipation surfaces. The Jonsbo TK-1 supports a 240mm radiator at the top. While adequate for many builds, it cannot accommodate the larger 280mm unit in the front. If you plan to use a large AIO or custom loop with a 280mm block, the NZXT case provides the necessary mounting space. The Jonsbo is limited to the 240mm configuration.
motherboard support
Form factor dictates what motherboard you can install. The NZXT H5 Flow RGB is a mid-tower case. It supports standard ATX motherboards. This gives you room for more expansion slots and larger boards. The Jonsbo TK-1 is a mini tower. It supports Micro-ATX and Mini-ITX motherboards only. If you need the extra features of a full-size ATX board, the NZXT is the only option. The Jonsbo restricts you to smaller form factors, which may limit expansion card options.
tower size
Physical dimensions affect desk space and portability. The NZXT H5 Flow RGB measures 20.9 inches in length. It is a mid-tower design. The Jonsbo TK-1 is significantly smaller. It measures 12.2 inches in length and 13.6 inches in height. This compact footprint makes the Jonsbo easier to place on a desk or in tight spaces. The NZXT requires more room. If space is a primary constraint, the smaller Jonsbo tower is the practical choice. The NZXT offers more internal volume for components.
gpu compatibility
Graphics card length determines which GPUs you can use. The NZXT H5 Flow RGB supports GPUs up to 400mm in length. This accommodates most high-end cards without modification. The Jonsbo TK-1 supports GPUs up to 280mm. This limit is quite restrictive for modern, large graphics cards. You must check your specific GPU dimensions before choosing the Jonsbo. The NZXT provides ample clearance for almost any standard card.
side panel
Both cases feature tempered glass side panels. This allows you to view your internal components and lighting. The NZXT H5 Flow RGB includes two pre-installed F140 RGB Core fans. These connect to a 5V ARGB header. The Jonsbo TK-1 features a hyperboloid curved glass design. It does not list included fans in its key specs. Both provide visibility, but the NZXT adds integrated lighting hardware for immediate aesthetic appeal.
Choose the right case for you
Standard ATX builders wanting max cooling
You need a standard ATX mid-tower with strong airflow. The NZXT H5 Flow RGB supports a 280mm radiator in the front. It includes two 140mm fans and a dedicated GPU fan. This setup provides ample clearance for large graphics cards up to 400mm long.
Compact Micro-ATX enthusiasts preferring small builds
You prefer a smaller footprint for a Micro-ATX or Mini-ITX build. The Jonsbo TK-1 fits a 240mm radiator at the top. Its compact dimensions make it suitable for multi-angle placement. It also supports GPUs up to 280mm long within its mini tower chassis.
Users needing vertical GPU mounting options
You want to display your graphics card vertically. The NZXT H5 Flow RGB is ready for a vertical GPU mounting kit. Note that this reduces clearance to 384mm. The case still supports a 280mm front radiator and includes RGB fans for aesthetic customization.
Quick picks
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | NZXT H5 Flow RGB Mid-Tower Case | 280mm front radiator cooling builds | Check price of NZXT H5 Flow RGB Mid-Tower Case on Amazon |
| 2 | Jonsbo Curved Glass Micro ATX Mini Tower | Compact Micro-ATX builds with curved glass | Check price of Jonsbo Curved Glass Micro ATX Mini Tower on Amazon |
The products compared
NZXT H5 Flow RGB Mid-Tower Case
Best for: 280mm front radiator cooling builds
- Radiator Support
- 280mm Radiator (what this guide is about)
- Case Type
- Compact ATX Mid-Tower
- Side Panel
- Tempered Glass
- Included Fans
- 2x F140 RGB Core, 1x 120mm
- Max GPU Length
- 400mm
- Use
- Gaming
View on Amazon: NZXT H5 Flow RGB Mid-Tower Case Affiliate link
The NZXT H5 Flow RGB is a compact ATX mid-tower case with a tempered glass side panel. It supports up to a 280mm radiator in the front and a 240mm unit on top. The case includes two pre-installed 140mm RGB fans and a dedicated 120mm GPU fan. You get 400mm of GPU clearance. This setup suits builders who need strong airflow and RGB lighting for gaming.
Pros
- Supports a 280mm front radiator
- Includes two 140mm RGB fans
- Features a dedicated 120mm GPU fan
- Offers 400mm GPU clearance
Cons
- Vertical GPU mount sold separately
- Mounting reduces clearance to 384mm
- Fans connect to 5V ARGB header only
Good fit if
- You want 280mm front radiator support
- You prefer pre-installed RGB fans
- You need high airflow for gaming
Skip if
- You need a larger ATX tower
- You want included vertical GPU mount
- You prefer 12V RGB lighting
Verdict: The NZXT H5 Flow RGB White ATX fits users who prioritize front-mounted 280mm radiator cooling and include RGB fans. It is a solid pick for gaming builds requiring strong airflow and tempered glass visibility.
Jonsbo Curved Glass Micro ATX Mini Tower
Best for: Compact Micro-ATX builds with curved glass
- Radiator Support
- 240mm Radiator (what this guide is about)
- Motherboard Support
- Micro-ATX, Mini-ITX
- Case Type
- Mini Tower
- Side Panel
- Tempered Glass
- Max GPU Length
- 280mm
- Dimensions
- 12.2 × 11.8 × 13.6 inches
View on Amazon: Jonsbo Curved Glass Micro ATX Mini Tower Affiliate link
The Jonsbo TK-1 White is a Micro-ATX mini tower with a 240mm radiator support limit. It features a hyperboloid curved tempered glass side panel and an aluminum alloy shell. The separated cabinet structure aids airflow. You get 280mm GPU clearance and a USB-C front port. This compact case suits users who prioritize vertical airflow and a unique aesthetic over large component expansion.
Pros
- Supports 240mm AIO radiators at the top
- 280mm maximum GPU length clearance
- Double curved tempered glass side panel
- USB 3.2 Gen 2 Type-C front port
Cons
- Micro-ATX motherboard support only
- 240mm radiator limit excludes larger 280mm or 360mm options
- Compact 12.2-inch depth restricts large component placement
Good fit if
- You need a Micro-ATX or Mini-ITX build
- You want a vertical airflow design
- You prefer a curved glass aesthetic
Skip if
- You require ATX motherboard support
- You plan to use a 280mm or larger radiator
- You need extensive drive bay space
Verdict: The Jonsbo TK-1 White Mini Tower fits users building compact Micro-ATX systems who value vertical airflow and a distinct hyperboloid glass design over maximum component compatibility.
Specifications side by side
| Spec | NZXT H5 Flow RGB Mid-Tower Case | Jonsbo Curved Glass Micro ATX Mini Tower |
|---|---|---|
| Motherboard Support | not stated | Micro-ATX, Mini-ITX |
| Case Type | Compact ATX Mid-Tower | Mini Tower |
| Side Panel | Tempered Glass | Tempered Glass |
| Included Fans | 2x F140 RGB Core, 1x 120mm | not stated |
| Radiator Support | 280mm | 240mm |
| Max GPU Length | 400mm | 280mm |
| Tower Size | Mid-Tower | Mini-Tower |
| Use | Gaming | not stated |
| Lighting | RGB | not stated |
| Compatible Device | Radiator | not stated |
| Dimensions | 20.9 × 20 × 11.5 inches | 12.2 × 11.8 × 13.6 inches |
| Weight | 2.2 pounds | not stated |
| Size | H5 Flow RGB (Mid-Tower) | not stated |
| Color | White | WHITE |
| Model | CC-H51FW-R1 | not stated |
Frequently asked questions
Does a 280mm radiator fit in any mid-tower case?
No. You must check the specific radiator support specs. The NZXT H5 Flow RGB is an ATX mid-tower that supports a 280mm radiator in the front. Other cases may only support smaller sizes or different mounting positions. Always verify the front panel capacity before buying.
Can I put a 280mm radiator in a mini-tower?
Usually not. Mini-towers have limited internal volume. The Jonsbo TK-1 is a Micro-ATX mini-tower that supports a 240mm radiator at the top. It does not list 280mm support. Larger radiators typically require mid-tower or full-tower chassis to fit properly and allow for adequate airflow.
What is the size difference between a 280mm and 240mm radiator?
The 280mm radiator is longer and provides more surface area. It typically uses two 140mm fans. The 240mm radiator is shorter and often uses two 120mm fans. The NZXT H5 Flow RGB accommodates the larger 280mm unit for greater heat dissipation potential compared to standard 240mm setups.
Is tempered glass standard on these cases?
Yes. Both listed models feature tempered glass side panels. The NZXT H5 Flow RGB includes a tempered glass side panel for visibility. The Jonsbo TK-1 also offers a curved tempered glass design. This allows you to view your internal components and lighting without removing the panel.
Which case is better for a standard ATX build?
The NZXT H5 Flow RGB is designed for ATX motherboards. It is a mid-tower case suitable for standard ATX builds. The Jonsbo TK-1 supports only Micro-ATX motherboards. If you are using a standard ATX board, the NZXT H5 Flow RGB is the compatible choice for your build.
Do these cases support RGB lighting?
The NZXT H5 Flow RGB includes RGB lighting features. It is explicitly labeled with RGB support for fans or strips. The Jonsbo TK-1 data does not specify RGB capabilities. If integrated lighting is a priority, the NZXT model provides that specification in its attributes.
How much space does a 280mm radiator take up?
It requires significant front panel depth. The NZXT H5 Flow RGB measures 20.9 inches in length and 11.5 inches in height. It supports a 280mm radiator in the front position. Ensure your GPU and other components fit behind the radiator. The internal dimensions dictate the maximum cooling hardware size.
Can I use a 240mm radiator in the NZXT H5 Flow?
The data specifies 280mm support for the NZXT H5 Flow. It does not explicitly list 240mm compatibility. However, smaller radiators often fit in slots designed for larger ones. You should verify the specific fan mounting options in the manual. The primary listed support for this model is the 280mm size.