Power Management Deals

Compatible with LG monitors that need a 19V power source, so it's worth grabbing if your original adapter died or went missing. Newegg carries this 140W version for models that draw more power than the standard 65W chargers can supply. Buy Now at Newegg

Suits anyone repairing or building electronics that need a stable 5V output, like small industrial controls or bench-test setups, since this regulated supply delivers consistent 3.0A without the fluctuations you'd get from a cheap adapter. Buy Now at Newegg

Handy for keeping a spare on hand if your original MX Sound power adapter goes bad or gets lost, since finding a compatible replacement isn't always straightforward. Buy Now at Newegg

For anyone heading to Europe with US electronics, this adapter handles the plug shape mismatch without needing a bulky converter kit, and it's currently $11.70 off the list price at Walmart. Buy Now at Walmart

Anyone who's lost the original power cord for their Harman Kardon HK206 speakers or a compatible Dell laptop can grab this as a straightforward replacement without hunting down brand-specific parts. Buy Now at Newegg

Anyone who's misplaced or worn out the original cord for their Ikarao Break X2 can swap this in without hunting for a discontinued part or settling for a mismatched voltage. Buy Now at Newegg

Homeowners doing panel repairs or upgrades on Zinsco or Sylvania HQP-compatible systems will want this on hand, since the 65kA interrupting rating gives you extra protection against high fault currents compared to standard breakers. Buy Now at Home Depot

Handy for anyone whose CZH Series FM Transmitter needs a stationary power source instead of running on batteries, especially if you're setting up the unit for extended or continuous broadcasting. Buy Now at Newegg

Marine and off-grid solar setups needing a heavy-duty, weatherproof disconnect will find this useful for protecting 48VDC systems from overload without wiring in a fuse. It's $4.42 (20%) off the $22.10 list price. Buy Now at Amazon

Anyone building or repairing LED lighting setups will want steady, adjustable brightness without flickering, and this power supply handles that job without needing a separate dimmer switch wired in. It suits DIY installations where you want one component controlling both power and dimming instead of juggling multiple parts. Buy Now at Newegg

Worth grabbing as a replacement or backup if you're running Delta-compatible electronics at 12V, since it's rated for a solid 3A/36W output without overloading your device. Buy Now at Newegg

Handy if your Insignia NS-B2113 docking station's original power adapter has died or gone missing, since finding the exact replacement for a discontinued accessory like this can otherwise be a hassle. Buy Now at Newegg

Anyone running a Superscope or Marantz DA450PSD deck will want a reliable replacement power source, and this adapter delivers the exact 15V AC/DC output the unit needs without hunting down a discontinued original. Buy Now at Newegg

Anyone building or repairing equipment that needs a stable 12V DC source will find this handy, since it's rated for continuous industrial use rather than the occasional light-duty task. It suits electronics hobbyists and technicians who need reliable output without babysitting the supply under sustained loads. Buy Now at Newegg

Anyone whose DGM L-1982WD or L-2282WD monitor lost its original power cord can swap in this adapter without hunting down a discontinued OEM part, and Newegg's listing makes it easy to confirm compatibility before you buy. Buy Now at Newegg

Worth a look if you're repairing or replacing a failed power module in equipment that calls for a 9V 5A output, since sourcing an exact-spec board like this one can otherwise take some digging. Newegg carries it as a standalone component, so you're not stuck buying a whole new unit just for the supply. Buy Now at Newegg

Anyone building or repairing solar setups, battery banks, or off-grid power systems will find this handy for stepping up lower DC voltages to match what your equipment actually needs, with enough headroom to handle 1,500W loads without strain. Buy Now at Newegg

Anyone with an older Samsung SyncMaster monitor whose original power brick died or went missing can grab this as a direct replacement without hunting for a discontinued part. Buy Now at Newegg

Handy for tight power strips or wall outlets blocked by furniture, letting you split one plug into three without a bulky extension cord. It's $1.50 off the $10 list price at Best Buy. Buy Now at Best Buy

Pedalboard owners running a Strymon PS-124A will want this on hand as a direct replacement adapter, since matching the original voltage and polarity matters for pedal power supplies. Newegg carries it for those who'd rather not track down a Strymon-branded replacement at a higher price. Buy Now at Newegg

Newegg has the Ablegrid 8V 1A AC to DC Power Adapter for anyone replacing a lost or worn-out charger on 8V electronics, since it's built to match that specific voltage and current output rather than serve as a universal fit. Buy Now at Newegg

Homedics device owners who've misplaced or worn out the original power cord can swap this in without hunting down the exact OEM part, since it matches the TEAD-28-120100U's specs directly. Buy Now at Newegg

Handy for anyone with a cluttered entertainment center or desk setup that needs both extra outlets and USB charging in one spot, without a bunch of separate bricks and cords fighting for space. Buy Now at Home Depot

Update: The price has changed to $21.95 since this was originally published.

Handy for road trips or job sites where you need to run a laptop or charge small devices straight from your car's outlet, and it's only $1.59 off the list price right now. Buy Now at Amazon