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Antec Flux SE Silent PC Case, Sound-Dampening Foam Side Panels for Quiet Operation, Walnut Wood Front Panel, 5 x PWM Fans, USB Type-C, 420mm Radiator Support, Back Connect Ready, E-ATX Mid Tower Case

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  • FLUX
  • FLUX M
  • FLUX Pro
  • FLUX Pro White
  • FLUX REAR
  • FLUX SE
  • Crafted with a combination of metal, glass and wood to create a high-quality texture with different materials. Sound-dampening foam on both side panels ensures a quieter computing experience.
  • Multi-directional vent design creates a dedicated Antec Flux airflow channel.
  • Supports up to 9 fans simultaneously, with pre-installed 3 x P12 PWM at the front & 1 x P12R PWM reverse fan at the power supply chamber & 1 x P14 PWM in the rear.
  • Supports simultaneous installation of Front 360mm radiator + Top 360mm radiator or Front 420mm radiator + Top 280mm radiator.
  • Widely supports various back-connect motherboards available on the market.
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Overview
Specs
Reviews (91)
Antec FLUX SE Computer Case
Antec FLUX SE Computer Case

FLUX SE

Flux Series

Introducing FLUX SE, a Mid Tower PC case meticulously engineered for performance, aesthetics, and quietness. Crafted from steel, plastic, and wood, its panel offers a premium texture, seamlessly blending into any home design. Its multi-directional vent design ensures optimal airflow, with sound dampening foam on both sides ensuring sound insulation. FLUX SE supports up to 9 fans, maximizing heat dissipation while maintaining an optimal environment for your components.

  • Supports up to 9 fans simultaneously, with standard configuration of 3 x P12 PWM at the front & 1 x P12R PWM reverse fan at the power supply chamber & 1 x P14 PWM in the rear.
  • Multi-directional vent design, featuring extensive air intakes at the bottom, power supply chamber and lower sides, along with top vents and large-area mesh at the front.
  • Supports simultaneous installation of Front 360mm radiator + Top 360mm radiator or Front 420mm radiator + Top 280mm radiator.
  • Removable modular heat dissipation bracket at the top, designed for easy installation of cooling components.
  • Fully-open PCIE extension slots, widely compatible with vertical GPU kits, enhancing flexibility and display of GPU installation.
  • The front panel is crafted with a combination of metal, mesh, and wood to create a high-quality texture with different materials, integrating seamlessly into home design.
  • Widely supports various back-connect motherboards available on the market, making the front side cleaner and facilitating overall heat dissipation.
  • Sound dampening foam on both sides makes a silent build.
Antec FLUX SE Computer Case

Antec, Inc. is the global leader in high-performance computer components and accessories for the gaming, PC upgrade and Do-It-Yourself markets.

Founded in 1986, Antec is recognized as a pioneer in the industry and has maintained its position as a worldwide market leader and international provider of quiet, efficient and innovative products.

Antec has also achieved great success in the distribution channel, meeting the demands of quality-conscious system builders, VARs and integrators.

Antec FLUX SE Computer Case
Antec FLUX SE Computer Case

CASE COMPATIBILITY

Antec FLUX SE Computer Case

Extensive Interior

  • Motherboard Support: E-ATX(≤ 330 mm), ATX, Micro-ATX, ITX
  • Max CPU Cooler Height: up to 180 mm
  • Max GPU Length: up to 408 mm
Antec FLUX SE Computer Case

Extensive Interior

Max Power Supply Length: (Include cable) ≤ 235mm(with HDD)

3.5" / 2.5" : 2 / 2

2.5" : 1

Antec FLUX SE Computer Case

Best Cooling Design

[Fan Support] Up to 9 fans simultaneously.

  • Top | 120mm x 3 / 140mm x 2
  • Front | 120mm x 3 / 140mm x 3
  • Rear | 120mm x 1 / 140mm x 1
  • PSU Shroud | 120mm x 2 / 140mm x 2

[Radiator Support]

  • Top | Up to 360mm
  • Front | Up to 420mm
  • Rear | Up to 140mm

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year
  • Read full details

Return Policies

    We want to ensure your holiday shopping this year is hassle-free. That’s why we’re automatically extending our return policies on almost every product! For purchases placed between November 1st, 2026 and December 31, 2026 you will have until January 31, 2027 to return your product.

  • Return for refund until: January 31, 2027
  • Return for replacement until: January 31, 2027
  • This item is covered by Newegg.ca's Extended Holiday Return Policy.
  • Read full return policy for details.

Manufacturer Contact Info

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The Antec FLUX SE is a quiet-focused E-ATX mid-tower PC case with sound-dampening foam side panels, five pre-installed PWM fans, and support for large radiators. It suits builders who want a quieter system with flexible cooling for gaming or workstation components.

Recommended For

  • Gaming-PC builders who want strong airflow for a heat-producing graphics card without a glass side window; Antec’s airflow layout directs intake toward the GPU, and a review tested the case under load.
  • Builders who prefer a discreet, non-RGB setup for a home office or shared living space, and want a solid side panel with a walnut-accented front rather than a view of internal components.
  • PC builders planning a large air-cooled or liquid-cooled system who want room for a tall CPU cooler, long graphics card, or a large front radiator; the case supports up to a 420 mm front radiator and 360 mm at the top.
  • DIY builders who value a straightforward installation and access to the interior; one FLUX SE owner described the build as easy and noted room for a large GPU and cable routing.

Spec Summary

AttributeValue
Best ForMid-tower builds using ATX, E-ATX, Micro-ATX, or ITX motherboards, with support for multiple fans and large radiators
Form Factor And CompatibilityMid-tower case compatible with ATX, E-ATX, Micro ATX, and ITX motherboards
Cooling And Radiator SupportAir-cooling layout with support for up to 3 × 120 mm or 3 × 140 mm front fans, 1 × 120 mm or 1 × 140 mm rear fan, and 2 × 120 mm or 2 × 140 mm top fans; five fans pre-installed. Radiator support: front up to 420 mm, top up to 360 mm, or rear up to 140 mm
Drive Bays And Expansion2 internal 3.5-inch bays, 2 internal 2.5-inch bays, and 7 expansion slots
Component ClearanceSupports graphics cards up to 408 mm, CPU coolers up to 180 mm tall, and power supplies up to 235 mm long
Ports And Power Supply3 USB ports total, including 1 USB 3.0 port; bottom-mounted power supply
Construction And Side PanelBlack steel, plastic, and wood construction with a non-windowed side panel and bottom dust filter
Size And Weight19.05 in deep × 19.4 in wide × 19.76 in high; weighs 19.4 lb
Model IdentifiersAntec FLUX SE; part number FLUX SE