HS 420

The HS 420 is a work of functional beauty and user-centric innovation. Through dozens of prototypes and redesigns, and literally thousands of hours of rigorous testing by HAVN and Pro Gamers Group engineers, we have tailor-made this Hybrid Structure case to deliver unrivaled central GPU airflow within a dual chamber design while maintaining traditional mid-tower dimensions. Built for the most powerful fans and radiators on the market, it provides the thermal optimization you need for the most demanding tasks.

  • UniSheet heat-formed panoramic glass panel for front and side, engineered to be flatter and with a smaller radius to minimize visual distortion.
  • Optimized thermal performance design with custom panel ventilation, ideal for 140mm fans (11 fan positions in total), and up to 420mm radiators on the top, side, and bottom.
  • Intuitive SimpliCable routing system & fan hub organizes your cables cleanly and discreetly.
Sale price$229.99

Includes free shipping. Tax calculated at checkout.

Available for shipping in the U.S. only (at this time). Want EU delivery? Click here to sign up.


Color: Black

Click here for Bulk Orders and Business Enquiries

The HS 420 is a work of functional beauty and user-centric innovation. Through dozens of prototypes and redesigns, and literally thousands of hours of rigorous testing by HAVN and Pro Gamers Group engineers, we have tailor-made this Hybrid Structure case to deliver unrivaled central GPU airflow within a dual chamber design while maintaining traditional mid-tower dimensions. Built for the most powerful fans and radiators on the market, it provides the thermal optimization you need for the most demanding tasks.

  • UniSheet heat-formed panoramic glass panel for front and side, engineered to be flatter and with a smaller radius to minimize visual distortion.
  • Optimized thermal performance design with custom panel ventilation, ideal for 140mm fans (11 fan positions in total), and up to 420mm radiators on the top, side, and bottom.
  • Intuitive SimpliCable routing system & fan hub organizes your cables cleanly and discreetly.

HAVN Hybrid Structure for Optimal GPU Cooling

Dual-chamber design with balanced airflow and a traditional case size ratio, designed to direct cool air from the bottom intake onto the centrally positioned GPU.​

GPU Centric Design

The GPU takes center stage within the HAVN Hybrid Structure, putting it on full display behind the panoramic UniSheet glass. This design optimizes GPU airflow and highlights your most important components.

Mirrored Airflow

An additional fan intake at the bottom of the rear panel channels cool air directly to your graphics card, perfectly balancing intake and exhaust. This ensures peak performance and helps maintain a cleaner, dust-free system.

Cooling Power & Compatibility

HS 420 fits a total of eleven 140mm fans while supporting up to 420mm radiators on its top, right, and bottom.

UniSheet heat-formed Glass Panel for Panoramic View

We challenged the limits of production to engineer the smallest possible curve radius and minimize visual distortion, providing the user with a clear and continuous view of the inside of the case.​

Unique SimpliCable Routing System

Uniquely user-friendly SimpliCable routing system and fan hub - top-to-bottom grooved guides cleanly route your cables for a pristine overall appearance.

Cable Management Re-Invented

Clever silicon pass-throughs with stabilizing clips allow for precision cable management.

Vibration Isolation

All of the fan brackets have flexible rubber to isolate the bracket from the chassis and avoid resonance build up.

GPU Support

The 3-way adjustable structural support bracket is designed to handle a wide range of graphics cards of all shapes and sizes while maintaining a neat and smoothly integrated appearance.

Customization

Customizable space accommodates a combination of storage, fans, radiators, and portable displays (VESA mounting bracket included)

Display

Fans

Drag

Product Specifications

Form Factor

Mid Tower

Material

SGCC sheet metal, tempered glass, ABS, Nylon, Silicon, Zinc alloy, NdFeB magnets

PC Case Dimensions (L x W x H)

541 x 259.5 x 547 mm

Net Weight

17.84 kg

Warranty

1 year

Notice
Warranty support is only available for orders shipped within the United States. Orders via forwarding services are not supported.

Please review our full warranty terms for more information.

Front I/O

USB 3.2 Gen 2 Type-C x1

USB 3.2 Gen 1 Type-A x2

Audio Jack x1

Power & Reset Button x1

Motherboard Support

E-ATX (Max Width 277 mm) / ATX / M-ATX / Mini-ITX

Expansion Slots

6

Fan Support

Maximum Amount: 11

Top: 3 x 120 / 3 x 140 mm

Right: 3 x 120 / 3 x 140 mm

Bottom: 3 x 120 / 3 x 140 mm

Rear: 2 x 120 / 2 x 140 mm (Thickness Up to 30 mm)

Fan PWM Repeater

Fan Ports: 2 x PWM repeaters, 12 ports total

Location: 1 x Cable Management Tray
1 x PSU Shroud

Fan Connectors: 6 ports per repeater x 4-pin PWM

(Connect your primary fan to the white port to control PWM signal.
All other ports mirror the white port's signal.)

Fan Rated Voltage: 12V

Fan Safety Current: Up to 2.6A across 6 ports

Power Connector: 1 x SATA Power

Power Safety Current: 1 x SATA connector power input, 12V → 2.6A (max)

CPU Tower Cooler Clearance

Height: Up to 185 mm. Tower cooler size depends on GPU width. CPU center to graphics card PCIe edge connector; ~199mm (varies by motherboard). Liquid cooling recommended.

Liquid Cooling Support

Top: 280 / 360 / 420 mm (Thickness: 65 mm, not overlapping with RAM)

Right: 280 / 360 / 420 mm (Thickness: 60 mm w/ GPU >317mm, 80 mm w/ top AIO)

Bottom: 280 / 360 / 420 mm (Thickness: 120 mm)

Graphics Card Clearance

Length: Up to 480 mm

Width: Up to 195 mm. GPU width support depends on CPU cooler size. CPU center to graphics card PCIe edge connector: ~199mm (varies by motherboard). Liquid cooling recommended.

GPU Support

2 - 5 Slots

RAM Clearance

If the fan and radiator thickness is greater than 65 mm: 420 mm - 32 mm / 360 mm - 43 mm

Power Supply Support

ATX

Length: Up to 220mm (Clearance - 290mm)

Storage

Right Fan Mount: 4 Storage Bays: 4 x 3.5'' / 8 x 2.5''

Cable Management Tray: 1 Storage Bay: 1 x 3.5'' / 2 x 2.5''

Storage Bay Included: 4x

Internal Display Support

VESA Mounting: 75 x 75 mm / 100 x 100 mm

Display Size: 14 in. (Max)

Location: Front Right Pillar

Dust Filter

Bottom: 1 (Removable)

Top: 1 (Built-in)

Right: 1 (Built-in)

Rear Bottom: 1 (Removable)

Fan Configuration Recommendations

View all

Customer Reviews

Based on 28 reviews
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Timothy
Absolutely outstanding case!

Absolutely outstanding case! Everything about it is well thought out and I've never had such a smooth experience assembling a build. Well done!

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Anonymous
Very well thought out case

Very well thought out case. Definitely worth the money and want to stick with Havn cases for a while.

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Anonymous
Quality you can't find elsewhere

I initially bought a $200 case from a different brand for my build. After watching Jayztwocents review, I returned the other case and bought this one. I am incredibly happy I made that choice. Quality. That is what this case brings that so many other case manufacturers just aren't able to provide. You won't be disappointed with this one.

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Alex
Awesome case! Absolutely love

Awesome case! Absolutely love it!

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Ali Hadi

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Ian Bicknell
Most solid well thought out case

Ive had my fair share of fancy corsair cases, built in hyte, fractals etc. This one though. Takes the crown. Excellent build quality. Well thought out cable routing thats even labeled for recommendations. Each fan spot being 140mm makes this case breathe much better than most while being very quiet. Its far from cramped, super easy to build in. I would buy this again.

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Jeffrey Mechanic
Great Big Case!

Found this case while watching Gamers Nexus. Largest case I’ve built in yet but I knew that going in. First off, amazing user guide for beginners and experienced pc builders alike. It’s a big case with lots of features, so the step by step guide with ACCURATE AND DETAILED images and descriptions is appreciated. Lots of space to work with and it makes installing parts much easier. Cable management channels in the rear of the case are very helpful (especially with the recommended cable labels). The customizability of the storage bay space is a nice example of this case being for anyone. Can be fans, extra storage, or an internal display screen with the provided mount. The curved glass is amazing looking making it look like a proper display for the components inside. My only complaint is how heavy the case is because once you get your parts in be careful not to underestimate it when you need to move it around for maintenance. 10/10 and looking forward to other products in the future.

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A.S.
Amazing Case

Beautiful case and easy to install components. Its a clean build with room for all my devices. Again, just a beautiful case.

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Anonymous
Amazing case inside and out!

Was a joy building using the HS 420. Not only is it aesthetically pleasing. It's easy to work with. The build in cable management system is top notch. One thing to note is this case is heavy and quite big. It's on the larger end of Mid Tower cases.

I would highly recommmend it!

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Paul Cole
This might be the perfect case.

The HS 420 is undoubtedly a labor of love. The curved glass is next level design and building in this case is simply a joy. I can't wait to see what HAVN has coming next.