Power Management Deals

Handy if your Yamaha portable or computer speakers lost their original power supply, since this adapter is built to match the voltage and connector these units need without hunting down a discontinued OEM replacement. Buy Now at Newegg

This power supply suits anyone replacing a failed 5V unit in networking or embedded equipment, since it delivers consistent, low-voltage output without the guesswork of matching specs from a generic adapter. Newegg carries it if you need a dependable replacement part on hand rather than waiting on a specialty electronics supplier. Buy Now at Newegg

Handy if you've misplaced the original power cord for your Brookstone speaker, since it lets you keep using the speaker plugged in instead of hunting down a discontinued replacement part. Buy Now at Newegg

Anyone running a Powerstroke or Subaru EA190V pressure washer needs a reliable way to keep it powered, and this adapter is built specifically to match that engine's electrical setup without forcing you to jury-rig a generic part. Buy Now at Newegg

Handy for anyone running a Ugreen Nasync DH2300 NAS who needs a reliable replacement or backup power adapter without hunting down the original charger. Buy Now at Newegg

Handy for keeping a spare on hand if you've got a device that takes a 18V 1A output and lost the original adapter, since generic replacements at this specific rating aren't always easy to track down. Newegg carries it for those who just need the power spec matched without hunting through multiple listings. Buy Now at Newegg

This DIN rail power supply suits anyone setting up industrial automation or control panel systems that need a reliable 48V output mounted directly to standard rail hardware, and Newegg has it for $30 off the list price. Buy Now at Newegg

Cleaning your rings and chains at home makes sense once you've got a machine for it, and this replacement power cord keeps an existing Ablegrid ultrasonic cleaner running instead of sitting unused because of a frayed or missing cable. Buy Now at Newegg

Anyone running an Ohaus YJ or YS series scale needs a compatible power source, and this adapter delivers the correct output without hunting down the original manufacturer part. Buy Now at Newegg

Anyone running automation equipment, LED lighting, or CCTV setups will want the stable 24V output this supply delivers without overloading a circuit designed for lighter loads. Buy Now at Newegg

Handy for anyone running holiday lights or garden features who wants set schedules without running back outside to flip a switch, and the six grounded outlets on a stake let you power multiple items from one spot in the yard. Walmart has it for $26.09, which is $13.90 off the $39.99 list price. Buy Now at Walmart

Handy for anyone dealing with a dead adapter, since the included tips and voltage adjustment let it stand in for a range of routers, monitors, and other electronics without hunting down the exact original model. Buy Now at Newegg

Anyone setting up an industrial control panel or automation cabinet will want a DIN rail supply on hand, and this one mounts directly into standard enclosures without extra brackets or wiring hassles. Buy Now at Newegg

Losing or frying your laptop's original charger doesn't mean replacing the whole machine, and this adapter's 19V 6.3A output covers higher-wattage Toshiba models that lower-amp chargers can't handle. Buy Now at Newegg

This UPS suits home labs or small server closets that need to keep equipment running through short outages, with 500W of capacity for a router, NAS, or a couple of networking devices. Newegg has it at $1003, which is $496 off the $1499 list price. Buy Now at Newegg

This board suits anyone building a custom PC or server setup with multiple fans who wants precise, individual speed control instead of relying on a single motherboard header. It's especially useful if you're managing noise and airflow across a case with several fans that need to run at different speeds depending on temperature. Buy Now at Newegg

Update: The price has changed to $26.99 since this was originally published.

Useful for road trips or job sites where you need to power small electronics or charge devices straight from your car's 12V outlet, since it converts DC to standard AC current through two outlets plus USB ports. At $26.98, it's just a penny below the $26.99 list price, so this is more about convenience than any real discount. Buy Now at Amazon

Stalled batteries tend to happen at the worst times, so keeping this in your trunk means you can restart your car without waiting on roadside assistance or another driver; it's $34 (31%) off the $110 list price. Buy Now at Amazon

Power outages and voltage dips can fry electronics or wipe out unsaved work, and this UPS gives you enough runtime to save files and shut down properly when the lights go out. It suits anyone running a desktop, router, or small home office setup that can't afford an abrupt power loss. Buy Now at Newegg