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Antec Flux Rear Mid-Tower ATX PC Case

Case • Antec • $ 80.74

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The Antec Flux Rear Mid-Tower ATX PC Case is a thoughtfully engineered chassis that balances airflow, expandability, and modern aesthetics. Designed for enthusiasts and gamers, it supports a wide range of motherboards from Mini-ITX to E-ATX (up to 330 mm width), making it a versatile foundation for any high-performance build.

Key Features

Superior Airflow: The Flux series is renowned for its optimized airflow design. The front and top panels feature fine mesh to maximize intake and exhaust, while the included five fans (three 120 mm PWM front, one 120 mm reverse on the PSU shroud, and one 140 mm PWM rear) ensure excellent cooling out of the box.
Extensive Radiator Support: With support for up to 420 mm radiators in the front and 360 mm in the top, this case is ready for custom liquid cooling loops or high-end AIOs.
Modern Connectivity: The front I/O panel includes a USB-C port (10 Gbps), two USB 3.0 Type-A ports, and separate headphone and microphone jacks, providing fast data transfer and convenient audio access.
Flexible Storage: Accommodates two 3.5" drives and three 2.5" drives (two included brackets plus an additional mount), offering ample space for HDDs and SSDs.
Premium Build: The steel body is reinforced with plastic and wood accents, giving it a unique, natural look. The tempered glass side panel showcases your components and RGB lighting.

Performance and Compatibility

This mid-tower case supports graphics cards up to 408 mm in length (though the official spec lists 400 mm for safety) and CPU coolers up to 180 mm tall, making it compatible with the largest air coolers and GPUs on the market. The bottom-mounted PSU bay accepts standard ATX power supplies up to 235 mm deep (including cables when HDDs are installed), ensuring clean cable management.

Who Is It For?

The Antec Flux is ideal for PC builders who prioritize cooling and expandability. Whether you're assembling a high-end gaming rig, a content creation workstation, or a custom water-cooled system, this case provides the space and airflow needed to keep components running at peak performance. Its elegant design with wood accents also appeals to those who want a case that stands out from typical gamer aesthetics.

Conclusion

With its robust feature set, included fans, and flexible compatibility, the Antec Flux Rear Mid-Tower ATX PC Case is a compelling choice for anyone building a powerful, well-cooled system in 2025.

Key Specifications

Motherboard Support: Mini-ITX, Micro-ATX, ATX, E-ATX (≤ 330 mm width)

Type: Mid-Tower

Total USB Ports: 1 × USB-C (10 Gbps), 2 × USB 3.0 Type-A, plus headphone/mic jack (front)

Weight: ≈ 9.27 kg (net)

Radiator Compatibility: Front – up to 420 / 360 / 280 / 240 / 140 / 120 mm Top – up to 360 / 280 / 240 / 140 / 120 mm Rear – 120 / 140 mm

Drive Bays: 2 × 3.5″ + 2 × 2.5″, plus 1 additional 2.5″

Expansion Slots: 7

Expansion Card Length: ≤ 408 mm

CPU Cooler Clearance: ≤ 180 mm

PSU Support: Standard ATX PSU, bottom-mount, max depth ≤ 235 mm (including cables, with HDDs)

Cooling Fan Support: Front – 3 × 120 mm or 3 × 140 mm Top – 3 × 120 mm or 2 × 140 mm Rear – 1 × 120 mm or 1 × 140 mm Also: PSU shroud area supports 2 × 120 mm or 2 × 140 mm fans

Included Fans: 3 × 120 mm PWM (front) + 1 × 120 mm reverse (PSU shroud) + 1 × 140 mm PWM (rear)

Chassis Material: Steel body + plastic + wood accents, tempered glass side panel

Dimensions (D × W × H): 484 × 239 × 502 mm

Front I/O: 1 × USB-C (10 Gbps), 2 × USB-A (USB 3.0), headphone & mic jack, Power & Reset buttons

Detailed Parameters

Supported Form Factors:: Micro-ATX, ATX, Mini-ITX, E-ATX
Supported PSU Form Factors:: ATX, EPS
Maximum GPU Length in mm:: 400
Maximum Cooler Height in mm:: 180
Maximum Radiator Length in mm:: 360

Where to Buy

Amazon

Pros

Excellent airflow with five included fans (3x120mm front, 1x120mm reverse, 1x140mm rear)
Supports large E-ATX motherboards and GPUs up to 408mm
Versatile radiator support up to 420mm front and 360mm top
Modern front I/O with USB-C 10Gbps and separate audio jacks
Unique wood accents and tempered glass for a premium look

Frequently Asked Questions

Does the Antec Flux Rear Mid-Tower ATX PC Case come with fans?

Yes, it includes five fans: three 120mm PWM fans in the front, one 120mm reverse fan on the PSU shroud, and one 140mm PWM fan in the rear. This provides excellent airflow out of the box.

Can I install a 420mm radiator in the Antec Flux?

Yes, the front of the case supports radiators up to 420mm. The top supports up to 360mm, and the rear supports 120mm or 140mm radiators.

What is the maximum GPU length supported by this case?

The case can accommodate graphics cards up to 408mm in length, but the official spec lists 400mm for safety. This fits most high-end GPUs, including RTX 4090 models.

Does the case have a USB-C port on the front I/O?

Yes, the front I/O includes one USB-C port with 10 Gbps transfer speed, along with two USB 3.0 Type-A ports and separate headphone and microphone jacks.

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