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What's the Average Size for a Motherboard
2024-09-09
The average size of a motherboard is determined by its form factor, which specifies its dimensions. Here are the most frequent shape factors and their typical sizes:
ATX (Advanced Technology eXtended):
Size: 12 x 9.6 inches (305 x 244 mm)
Common Use: Standard desktop computers. This is the most popular motherboard size for gaming and high-performance systems.
Size: 9.6 x 9.6 inches (244 x 244 mm)
Common Use: Slightly smaller than ATX, used in smaller desktops, offering a balance between expandability and compactness.
Size: 6.7 x 6.7 inches (170 x 170 mm)
Common Use: Compact desktops or HTPCs (Home Theater PCs). This size is popular for building small, efficient PCs with limited expansion options.
Extended ATX (E-ATX):
Size: 12 x 13 inches (305 x 330 mm)
Common Use: High-end workstations and enthusiast gaming PCs. These motherboards support multiple GPUs and offer more expansion slots.
Each form factor is suited for different types of PC builds, with larger boards like ATX and E-ATX offering more room for expansion and smaller ones like Mini-ITX designed for compact systems.
2.Here's a chart that highlights the dimensions of the most popular motherboard sizes, commonly known as form factors:
| Form Factor | Dimensions (inches) | Dimensions (mm) | Use Case |
|---|---|---|---|
| ATX | 12 x 9.6 | 305 x 244 | Standard desktops, gaming PCs, workstations |
| Micro-ATX | 9.6 x 9.6 | 244 x 244 | Compact desktops, balanced between size and expansion |
| Mini-ITX | 6.7 x 6.7 | 170 x 170 | Small form factor builds, HTPCs (Home Theater PCs) |
| Extended ATX (E-ATX) | 12 x 13 | 305 x 330 | High-end workstations, enthusiast PCs with multiple GPUs |
| Mini-STX | 5.5 x 5.8 | 147 x 140 | Ultra-compact systems, basic computing |
| FlexATX | 9 x 7.5 | 229 x 191 | Small desktop systems with limited expansion options |
Key Points:
ATX is the most common for mainstream and gaming PCs.
Micro-ATX is a smaller variant that offers a good balance between size and expandability.
Mini-ITX is perfect for compact builds but has limited expansion options.
E-ATX is larger, allowing for more features and multiple GPUs, often used in enthusiast builds.
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