Computer parts and supplies cover every component that goes into building, upgrading, or repairing a desktop, laptop, or server system. From core processing and memory hardware to cooling, power, and peripheral accessories, the category spans everything that makes a computer run. ATR Auctions sources components from corporate workstation refreshes, server decommissions, institutional IT cleanouts, and enterprise hardware disposals across the nation. Inventory includes individual components, upgrade lots, and bulk teardown lots spanning desktop, laptop, and server hardware across a wide range of generations and configurations.

The CPU (Central Processing Unit) is the primary processor responsible for executing instructions and handling the core computational workload of a system. Available in desktop, laptop, and server variants from Intel and AMD. Desktop and workstation CPUs use LGA and AM socket platforms and are pulled from corporate workstation refreshes and system upgrades. Server CPUs include Intel Xeon and AMD EPYC processors pulled from rack server and blade system decommissions. A consistent surplus category as corporate and enterprise fleets refresh onto newer platforms.

GPUs (Graphics Processing Units) handle visual rendering, parallel processing, and increasingly AI and machine learning workloads. Available in consumer, workstation, and data center variants. Consumer and gaming GPUs surface from upgraded systems and enthusiast builds. Workstation GPUs including Nvidia Quadro and AMD Radeon Pro lines come through corporate creative and engineering environment refreshes. Data center accelerators including Nvidia Tesla and A-series cards surface from AI and HPC decommissions. A high-value and actively bid category.

The motherboard is the primary circuit board connecting every component in a system. Available in desktop ATX, Micro-ATX, and Mini-ITX form factors as well as server board configurations. Pulled from corporate workstation teardowns, system rebuilds, and institutional hardware disposals. Socket compatibility, chipset generation, and supported memory type are the key specs to verify before bidding. Server motherboards from Dell, HP, Supermicro, and Lenovo platforms surface through data center decommissions.

Power supply units convert AC wall power to the DC voltages computers require. Available in standard ATX form factors for desktops and workstations and redundant hot-swap formats for rack servers. Wattage, efficiency rating, and modular versus non-modular configurations vary by lot. Pulled from workstation teardowns, office cleanouts, and server decommissions. A consistent and high-volume surplus category given the volume of corporate hardware disposed annually.

CPU coolers maintain processor temperatures within safe operating ranges. Available as air coolers with heatsink and fan combinations and all-in-one liquid cooling units. Pulled from workstation and desktop teardowns. Tower coolers, low-profile coolers, and server heatsinks all surface in surplus channels. Thermal paste, thermal pads, and replacement fan lots also come through in bulk accessory disposals.

Desktop and workstation chassis in full tower, mid tower, small form factor, and rackmount configurations. Pulled from corporate workstation teardowns and system rebuilds. Common in bulk lots from office cleanouts. Server chassis including 1U, 2U, and 4U rackmount cases surface from data center decommissions. A practical category for system builders, repair shops, and IT refurbishers sourcing enclosures at below-retail prices.

PCIe expansion cards add functionality to desktop and server platforms including additional storage controllers, network interfaces, USB and Thunderbolt ports, RAID controllers, fiber channel HBAs, and video capture cards. Pulled from workstation and server teardowns across corporate and institutional environments. A useful category for IT professionals expanding system capability without new equipment pricing.

DVD, Blu-ray, and CD-ROM drives in internal and external configurations. Pulled from desktop and laptop teardowns and office equipment disposals. While optical drives are less common in current builds, they remain necessary for legacy media playback, disc burning, and systems that require optical boot capability. Available in SATA internal and USB external form factors.

Power cables, data cables, display cables, and adapter lots pulled from office cleanouts, workstation teardowns, and data center decommissions. Includes SATA cables, PCIe power connectors, DisplayPort and HDMI cables, USB adapters, and bulk mixed cable lots. A practical and cost-effective category for system builders, repair shops, and IT departments stocking common connectivity hardware.

Keyboards, mice, monitors, webcams, headsets, and input devices pulled from corporate office refreshes and institutional IT disposals. Available as individual units and bulk lot configurations. A consistent surplus category given the volume of corporate desktop fleet refreshes. Popular with schools, nonprofits, small businesses, and repair shops sourcing everyday computing peripherals at auction prices.

Screens, keyboards, batteries, hinges, trackpads, DC jacks, and component boards pulled from damaged or decommissioned commercial laptops. A niche but consistent category for repair technicians and refurbishers maintaining popular business laptop platforms from Dell, HP, Lenovo, and Apple. Lot details specify the platform and component type where known.

Assorted component lots from office cleanouts, workstation teardowns, and institutional IT disposals. May include a mix of CPUs, RAM, storage, power supplies, cables, and accessories across multiple generations and platforms. Priced to reflect the unsorted nature of the lot. Popular with repair shops, system builders, resellers, and bulk buyers comfortable sorting and testing mixed inventory.