Find the ideal desktop case, power supply unit or PSU, drive enclosures and trays, system cables and more. Whether you are building a high end gaming PC from scratch or revamping one you already …

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Pick Parts. Build Your PC. Compare and Share. We provide part selection, pricing, and compatibility guidance for do-it-yourself computer builders. Start Your Build

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Shop computer parts, video cards, PC components, sound cards, computer cases, computer components at Best Buy.

The six essential parts you'll need for a working PC are the case, motherboard, processor, RAM, hard drive, and power supply unit. A computer case is an enclosure for all the other components.

CDW sells PC components and parts including CPUs, GPUs, PSUs, RAM, SSD, HDD and PC cooling systems. Shop now and build your own PC.

Upgrade your computer with parts from Staples. Shop computer processors or hard drives to boost performance or increase storage. Free next-day delivery when you spend $35 minimum.

Shop a wide selection of Computer Components at Amazon.com including CPUs, solid-state drives, graphics cards, and more.

Shop PC components and storage at Newegg. Build or upgrade your rig with quality computer parts and data storage options for every budget.