Intel C28705-407 Socket 478 ATX motherboard supporting Pentium 4 processors with 800MHz FSB and DDR memory. Form factor is standard ATX, compatible with legacy tower chassis. Chipset supports dual-channel DDR SDRAM configuration typical of early-2000s Pentium 4 platforms. Socket 478 processors, 400/533/800MHz FSB variants. Features standard ATX I/O including IDE, SATA connectors, and legacy parallel/serial ports. Primary use cases include legacy system builds, lab/test environments, and industrial applications requiring Pentium 4 era hardware. Part number C28705-407 identifies Intel's OEM reference design.
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