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.
Color: Black
Sale price$229.99

Includes free shipping. Tax calculated at checkout.

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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 33 reviews
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H
Herb
Well built and thought out PC case

Well built and thought out PC case. Perfect for the larger size GPU's. Wire management is made super simple. Glass panel is really classy. Really happy I decided to build in this case,

L
Leo
This is a high-quality PC case

This is a high-quality PC case, not made from the flimsy materials you often find out there. Besides the excellent build quality, the design is simply beautiful. I already have one black and another white.

P
Paul
Great Case

The case is a joy to build in. The parts are high quality and the attention to detail is amazing. The only improvements I'd like to see are a separate power reset button on the top and an easier way to route fan cables from the back end of the lower fan tray to the cable chamber that doesn't interfere with the bottom dust filter screen.

D
Daveyon
Perfection

Perfection.

W
William
I effing love this case

I effing love this case. I did my build in a black version of this same case. I loved it so much that i did practically the same build in this white case for my daughter. I love the flexibility. Love the options. Love the cable channels and pass throughs. I really love that it came with a bracket to mount a monitor and GPU sag bracket. I was looking to get out of my wide, fish tank O11 Vision. This does it for me.

T
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!

A
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.

A
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.

A
Alex
Awesome case! Absolutely love

Awesome case! Absolutely love it!

A
Ali Hadi

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