The terminology around PC cases can be confusing, especially when manufacturers use similar terms to describe different things. "Full tower" and "full size" sound nearly identical, but they refer to different aspects of case design. Understanding this distinction helps you choose the right case without overpaying for features you won't use.
Here's the key difference: "full tower" refers to a case height category, while "full size" typically describes the motherboard form factor a case can accommodate. A case marketed as "full size" might only support ATX motherboards at maximum, while a "full tower" could potentially house E-ATX or even larger server boards. Let's unpack this in detail.
| Aspect | Full Tower | Full Size Case |
|---|---|---|
| Definition | Case height category (22-27 inches) | Maximum motherboard support (ATX) |
| Motherboard Support | E-ATX, ATX, M-ATX, ITX | ATX, M-ATX, ITX (no E-ATX) |
| Expansion Slots | 8+ slots | 7 slots (standard ATX) |
| Use Case | Workstations, multi-GPU, custom loops | Standard gaming, general use |
| Desk Space | Requires significant room | Standard footprint |
Full tower cases are defined by their height, typically ranging from 22 to 27 inches tall. This vertical space accommodates additional drive bays, larger radiators, and more fan mounting positions. The defining characteristic isn't motherboard support—it's the overall case volume and expansion capability.
Most full towers support E-ATX motherboards (305mm x 267mm), which extend beyond standard ATX dimensions. This is crucial for workstation builds where extended motherboards provide additional PCIe lanes for multiple GPUs or specialized cards. If you're building a rendering workstation or deep learning rig, the extra motherboard space matters enormously.
Full towers also offer superior cooling flexibility. The additional height typically allows for top-mounted 420mm radiators or dual 360mm radiator configurations. This matters for enthusiasts running custom water cooling loops where radiator capacity directly impacts thermal performance.
"Full size" is marketing terminology rather than a standardized specification. When manufacturers use this term, they're typically indicating the case supports standard ATX motherboards—the most common form factor for desktop PCs. It does NOT necessarily mean E-ATX support.
A "full size" case might be mid-tower height but support ATX boards comfortably. This makes it suitable for most gaming builds without consuming excessive desk space. The confusion comes when buyers assume "full size" means full tower capabilities, only to discover their E-ATX motherboard won't fit.
Always check the actual specifications rather than relying on marketing terms. Look for "E-ATX support" specifically if you need extended motherboard compatibility. The absence of this specification means the case likely tops out at standard ATX dimensions.
For most gamers, a standard full size case supporting ATX motherboards is ideal. You'll have adequate expansion for a high-end GPU, storage upgrades, and cooling solutions without paying for unused capacity. The smaller footprint fits comfortably on standard desks and under monitor stands.
Choose a full tower if you're building beyond typical gaming needs: multiple GPUs, server-grade components, extensive storage arrays, or custom water cooling with multiple radiators. The investment in additional case volume pays off when you're actually using the expanded capabilities.
The Infinity Plus BK bridges the gap between full size and full tower categories. Supporting ATX, M-ATX, and ITX motherboards with generous GPU clearance, this case offers full tower flexibility in a more manageable footprint. The airflow-oriented design keeps high-end components cool while the tempered glass panels showcase your build beautifully.
The Infinity BK represents the ideal full size case for most gaming builds. Its modular design accommodates various configurations while the tempered glass construction creates a premium aesthetic. Whether you're air cooling or running an AIO, the Infinity BK provides the space and airflow needed for consistent performance.
The Infinity Pro BK offers premium features for builders who want more than standard full size cases provide. With three tempered glass panels for maximum visibility and excellent cooling support, this case delivers full tower aesthetics without requiring full tower desk space.
