Phanteks Eclipse G400A ATX Mid-Tower PC Case
Overview
Phanteks Eclipse G400A: High-Airflow Mid-Tower Excellence
The Phanteks Eclipse G400A is a thoughtfully engineered ATX mid-tower case designed for enthusiasts who demand exceptional airflow, generous component support, and modern connectivity. With four pre-installed 140mm M25 Gen2 D-RGB fans, this case delivers outstanding cooling performance right out of the box, making it an ideal foundation for high-performance gaming or workstation builds.
Key Features
- Superb Airflow: The mesh front panel and included 140mm fans ensure maximum air intake, keeping your CPU and GPU cool even under heavy loads.
- Versatile Motherboard Support: Accommodates Mini-ITX, Micro-ATX, ATX, and even E-ATX boards up to 280mm wide, offering flexibility for various build configurations.
- Ample Radiator Support: Supports up to a 360mm radiator on the top and a 120mm radiator at the rear, allowing for robust liquid cooling setups.
- High-Capacity GPU and CPU Cooler Clearance: Fits graphics cards up to 415mm and CPU coolers up to 184mm tall, ensuring compatibility with the latest high-end components.
- Modern Front I/O: Includes a USB-C Gen2 port and two USB-A Gen1 ports, plus separate headphone and microphone jacks for convenient connectivity.
- Tool-Free Drive Bays: Two 3.5" and two 2.5" drive mounts provide ample storage options with easy installation.
Performance and Cooling
The G400A is engineered for thermal efficiency. The four included 140mm fans are strategically placed—three at the front for intake and one at the rear for exhaust—creating positive air pressure that minimizes dust buildup. The top panel supports up to three 120mm or two 140mm fans, and can accommodate a 360mm or 280mm radiator, making it perfect for custom liquid cooling loops or high-performance AIO coolers.
Build Quality and Design
Constructed with a sturdy steel body and a tempered glass side panel, the G400A offers both durability and a clear view of your components. The interior is spacious, with excellent cable management options including Velcro straps and rubber grommets. The PSU shroud hides the power supply and provides additional drive mounting points, keeping the build clean and organized.
Who Is It For?
This case is ideal for gamers, content creators, and PC builders who prioritize airflow and want a case that can handle high-end hardware without compromising on aesthetics. Whether you're building a powerful gaming rig with a flagship GPU or a workstation with multiple storage drives, the Phanteks Eclipse G400A offers the space, cooling, and style to meet your needs.
Key Specifications
Detailed Parameters
- Supported Form Factors:
- E-ATX, Micro-ATX, ATX, Mini-ITX
- Supported PSU Form Factors:
- ATX, EPS
- Maximum GPU Length in mm:
- 415
- Maximum Cooler Height in mm:
- 184
- Maximum Radiator Length in mm:
- 360
Pros
- Excellent airflow with four pre-installed 140mm D-RGB fans
- Supports large E-ATX motherboards and long GPUs up to 415mm
- Top radiator support up to 360mm for powerful liquid cooling
- Modern front I/O with USB-C Gen2 and two USB-A ports
- Tool-free drive bays and clean cable management options
Cons
- No front radiator support, limiting some AIO mounting options
- Side motherboard tray radiator mounting not supported
- Only one USB-A Gen1 port on front I/O (though spec says two, but actual listing shows one)