PC case and AIO cooler bundle PHANTEKS Eclipse G400A with Glacier M25 Gen2 (black)

The PHANTEKS Eclipse G400A with Glacier M25 Gen2 bundle combines a mid-tower PC case and a preinstalled-style all-in-one liquid cooler designed for mainstream desktop builds. The G400A chassis offers a layout for standard ATX/mATX/ITX motherboards with ventilation-focused front panel design, while the Glacier M25 Gen2 AiO provides a closed-loop liquid cooling solution for compatible CPUs. This set is intended to balance case airflow and enclosed liquid cooling in a single package for gaming, content creation and general-purpose systems.

Advantages

The bundle pairs a ventilation-optimized mid-tower case with an AiO cooler to simplify installation and ensure coordinated component fit. The Eclipse G400A chassis provides space for common drive and expansion configurations and promotes airflow through its front and internal fan mount options. The Glacier M25 Gen2 AiO brings a compact radiator and pump assembly that fits typical mid-tower layouts and reduces mounted air cooler height constraints, offering a cleaner internal appearance and potentially lower CPU temperatures compared with stock air solutions.

Suitable for

• Gaming PCs using mainstream ATX, micro-ATX or mini-ITX motherboards
• Content creation systems that benefit from improved CPU cooling
• General-purpose desktop builds where a balance of case airflow and enclosed liquid cooling is desired
• Users who prefer a mid-tower form factor with straightforward installation of a 240/280mm class AiO cooler

When it may not be suitable

This bundle may not be suitable for extreme overclocking scenarios where custom loop liquid cooling or larger radiators are preferred. Systems that require nonstandard or very tall memory modules, oversized GPU cooling brackets, or unique airflow layouts should verify internal clearances and radiator mounting points before purchase.

Key specifications

• Case type: mid-tower compatible with ATX, micro-ATX and mini-ITX motherboards
• Front panel: ventilation-focused design for improved intake airflow
• Drive bays and expansion: supports standard internal drive and expansion slot configurations for mid-tower builds
• AiO cooler type: closed-loop all-in-one liquid cooler with compact radiator and integrated pump
• Radiator compatibility: designed for typical 240/280mm AiO radiator mounting in mid-tower chassis
• Color: black

How to use

Install the motherboard and primary components into the PHANTEKS Eclipse G400A following the chassis manual, ensuring standoffs and I/O shield alignment. Mount the Glacier M25 Gen2 radiator in a compatible radiator location inside the case (top or front as permitted), secure the fans and radiator with the supplied screws, and connect the pump and fans to the motherboard headers or controller per the cooler manual. Route cables to maintain unobstructed airflow and verify fan and pump operation in BIOS or with a hardware monitoring utility before full system operation.

What to consider before purchase

• Verify radiator mounting positions and internal clearance for the Glacier M25 Gen2 within the chosen case configuration
• Confirm compatibility with your chosen CPU socket and motherboard fan/pump headers
• Check clearance for memory modules and tall CPU coolers if planning alternative cooling solutions
• Consider the number and placement of case fans for optimal airflow with the AiO installed

Usage recommendations

Use the bundled Glacier M25 Gen2 in a front or top radiator position supported by the Eclipse G400A for balanced case airflow; ensure the pump is connected to a dedicated header set to full power during initial testing and monitor temperatures under load to confirm expected cooling performance.