This open-box ASUS TUF Gaming Z790-Plus WiFi motherboard is priced well below the $230 cost of a factory-sealed one elsewhere. Shipping is free, too.  Best Buy backs open-box purchases with the same return and exchange policy as new items. Buy Now at Best Buy

With promo code "AFFUS40", this ASRock Challenger Arc B580 graphics card drops to $315 at AliExpress, $33 less than Walmart charges. It ships free from a U.S. warehouse. Intel Arc cards have a less mature driver and software ecosystem than Nvidia or AMD, and Linux driver support trails Windows.  Buy Now at AliExpress

Redeem the on-page rebate to get this MSI CPU Cooler for $80. That's a savings of $24.  Buy Now at Newegg

Promo code "AFFUS5" drops this MONTECH X5M case to $60, down from $180. Shipping is free from the United States. The case supports liquid-cooling radiators up to 360mm on both the top and front panels, surpassing the 240mm limit common in earlier Micro-ATX cases. Buy Now at AliExpress

Newegg's Build Week Blowout sale covers a wide range of build-your-own PC parts, from processors and graphics cards to power supplies, motherboards, storage, and cases. Deals include the AMD Ryzen 5 5500 processor at $99, down from $159, and the CORSAIR RM750e power supply at $90, down from $115. Brands represented span AMD, GIGABYTE, MSI, ASRock, Seagate, Samsung, and Corsair, making it a broad stop for shoppers piecing together or upgrading a desktop PC. Shop Now at Newegg

This three-pack of Corsair RS120-R ARGB fans is $34.99 in Black or White at Best Buy.  That's a $5 low.  My Best Buy members get free shipping on all orders (it's free to join). Buy Now at Best Buy

With promo code "SSF73786", this Raidmax RX-850AED 850W power supply drops to $44.99. That makes for a savings of $25 in total. Buy Now at Newegg

Redeem the on-page rebate to get this for $100. That's a savings of $60. Shipping is free. Buy Now at Newegg

At Newegg, get the Minisforum DEG2 External GPU Docking Station for $227 by applying promo code "TEFF356". That makes for a savings of $172. Shipping is free. Buy Now at Newegg

This Arctic Liquid Freezer III Pro 360 is priced well below Amazon's current $120 listing and under its recent average of $103. It's also cheaper than Amazon's 90-day low of $80. The cooler includes a triple 120 mm fan radiator, an offset cold plate for better heat transfer, and a built-in fan to cool the motherboard's voltage regulators. Buy Now at Amazon

Newegg offers the ASRock Steel Legend SL-850GW 850W 80 PLUS Gold Power Supply for $85. That's a savings of $65. Shipping is free.  Buy Now at Newegg

Newegg's Labor Day Sale covers thousands of PC components, prebuilt gaming desktops, laptops, and monitors from brands like AMD, GIGABYTE, MSI, ASUS, and Samsung. A Samsung SSD 9100 PRO 2TB drive is $399.99, down from $679.99, while an ABS Cyclone Aqua gaming PC with a GeForce RTX 5060 is $1,499.99. Several listings also include extra savings through limited-time promo codes on top of the marked discount. Shop Now at Newegg

This Cooler Master Sneaker-X case is $239.99, down from $516.60. It includes a bundled 360mm liquid cooler and an 850W SFX Gold power supply, and it's built to fit Mini-ITX motherboards with graphics cards up to 300mm long. Buy Now at Woot! An Amazon Company

At Newegg, the MSI MPG A850GS PCIE5, an 850W fully modular power supply with 80 PLUS Gold certification for up to 90% efficiency is $80 after a $10 rebate (clearly linked on the product page). That's a total savings of $30 and the best price we could find.  It includes dual native 12V-2x6 PCIe connectors, each capable of delivering up to 600W, along with a fluid-dynamic bearing fan and a Zero Fan Mode for quiet operation. It ships for free.  Buy Now at Newegg

At Newegg, the ASUS ROG Strix B650-A Gaming WiFi motherboard is $130 via coupon code "SSF73244".  That's $56 off and only $10 more than a used one at Newegg. (This one is new.)  It supports AMD Ryzen desktop processors and includes DDR5 memory support, three M.2 slots with heatsinks, and built-in WiFi 6E. Free shipping applies.  Buy Now at Newegg

Newegg's Gamer Zone Anniversary Sale spans desktop components, gaming PCs, laptops, and monitors from brands like ASUS, MSI, GIGABYTE, and AMD. Deals include an AMD Ryzen 7 9800X3D processor for $479 with a free liquid cooler, and a GIGABYTE 27" QHD 240Hz OLED gaming monitor for $389.99, down from $599.99. Storage deals are also part of the mix, including a Samsung 9100 PRO 1TB SSD for $249.99, down from $339.99. Shop Now at Newegg

Newegg offers the ASRock Steel Legend SL-850G 850W Full Modular Power Supply for $80. That's a savings of $50 and the lowest price we could find by $10. Shipping is free. Buy Now at Newegg

The ASRock PRO Series PRO-750G is $55 at Newegg right now. It's $50 under the current price at Amazon and the lowest price we could find. Free shipping applies.  Buy Now at Newegg

At Newegg, get the Corsair CX Series CX750 80 PLUS Bronze ATX Power Supply for $60 . That's the best price we could find by $20. Shipping is free. Buy Now at Newegg

At Newegg, get the ASRock Prime B550M PRO4, an AM4 motherboard supporting AMD Ryzen 5000 series processors, for $80. That's a savings of $35. Shipping is free. Buy Now at Newegg

Replacing a dead motherboard in your HP 17-CN laptop is usually cheaper than buying a new machine, and this board gets you back up and running without hunting down a full repair service. Worth a look if you're comfortable handling the install yourself or have a tech who can swap it in for you. Buy Now at Newegg

Builders running high-end AM5 setups will appreciate the robust VRM and PCIe 5.0 support here, especially if you're pairing it with a power-hungry CPU and GPU for serious overclocking headroom. Newegg carries this one for enthusiasts who want flagship-level connectivity and cooling options without hunting through multiple retailers. Buy Now at Newegg

Keeping an older or budget graphics card running cool is tough once stock fans wear out, and this 2-pack gives you a replacement set without hunting down a single discontinued part. It suits anyone doing a DIY GPU repair or maintenance job rather than someone needing a specific brand-matched fan. Buy Now at Newegg

Your GPU's thermals matter most if you're running demanding games or rendering work for extended stretches, and keeping a 5090 cool helps it sustain higher clocks without throttling. Worth a look for anyone building a high-end rig where stock cooling might not cut it under sustained load. Buy Now at Newegg

Streamers and video editors juggling multiple camera or console feeds at once will get the most out of this, since it captures four HDMI sources simultaneously through a single PCIe slot instead of relying on separate external capture devices. Buy Now at Newegg

Anyone running a cramped PCI build with a graphics card that idles hot will get some use out of this bracket, since it mounts extra fans directly over the GPU for added airflow without taking up a card slot. Buy Now at Newegg

Your CAD or 3D modeling workflow is where this card belongs, since Quadro drivers are built and certified for professional applications rather than gaming. Newegg has it as a budget-friendly way to get into workstation-grade graphics without paying for a higher-tier model you don't need. Buy Now at Newegg

Worth a look if you've got a graphics card with a failing stock fan, since a compatible 75mm blower replacement like this one can save you from buying a whole new card over a single worn-out part. Buy Now at Newegg

Graphics cards running hot in a cramped case tend to throttle, and this bracket gives you a spot to mount an extra fan right in a free PCI slot to pull that heat out. Worth a look for anyone building in a smaller case where airflow around the GPU is tight. Buy Now at Newegg

Server rooms and homelab setups relying on the TX100 S2 need a reliable replacement when the original PSU fails, and having a direct-fit option on hand saves you from troubleshooting compatibility issues with generic alternatives. Newegg carries this unit for anyone needing a straightforward swap rather than a full server upgrade. Buy Now at Newegg

Worth having on hand if you run an MSA1000 storage array and need a drop-in replacement to keep redundancy intact in case your current supply fails. Buy Now at Newegg

Datacenter techs maintaining older HP ProLiant DL380 G5 servers will want this on hand as a replacement or backup, since matching power supplies for legacy hardware can be tough to track down once the originals start failing. Newegg carries it for those still running this generation of equipment rather than replacing the whole server. Buy Now at Newegg