Power Management Deals

A dependable pick if your Cisco phone system's power adapter dies or goes missing, since sourcing the exact original can be a hassle once it's discontinued. Newegg carries the Power Cube 4, so you can get your desk phone running again without hunting down a replacement from multiple sellers. Buy Now at Newegg

Industrial setups running 24V equipment benefit most here, since this supply delivers a steady 5A of clean power without the voltage drift that trips up sensitive control systems. Newegg carries it if you're building out a panel and need a reliable component rather than a budget guess. Buy Now at Newegg

For anyone tinkering with electronics projects, this module lets you step up a lower DC voltage to a higher one, which comes in handy when you're powering components that need more juice than your source battery or supply can give directly. Buy Now at Newegg

This basic 12-foot 2-slot power cord works for replacing a lost or damaged cord on lamps, small appliances, or electronics with the same plug type, and at $10.99 it's priced at list with no current discount. Buy Now at Best Buy

Basic but essential for replacing a lost or frayed cord on a desktop, monitor, or amp, and it's currently priced the same as list, so there's no discount to factor in here. Buy Now at Best Buy

Classrooms and offices juggling a dozen tablets or laptops benefit most from the built-in individual compartments, which keep devices separated and organized while charging simultaneously; it's currently $25 off the $185 list price. Buy Now at Amazon

Update: The price has changed to $29.99 since this was originally published.

Handy for anyone dealing with a tangle of devices near a desk or entertainment center, since it combines 12 outlets with a built-in wireless charging pad on top. Amazon has it at $28.03, about $2 off the $29.99 list price. Buy Now at Amazon

Anyone who's misplaced the original charger for a device that takes the S024WM1200180 supply can use this as a direct swap without hunting down the exact OEM part. It's a straightforward replacement, so you'll want to double check your device's voltage and plug specs before ordering. Buy Now at Newegg

A solid pick if you need a reliable replacement power supply for a 12V device, whether it's a router, camera, or other small electronic. Newegg carries it as a straightforward, no-frills option when your original adapter dies or goes missing. Buy Now at Newegg

Anyone whose LaCie Petit lost its original power brick can use this as a straightforward replacement without hunting down a proprietary part from LaCie directly. Buy Now at Newegg

LG's genuine replacement power adapter is worth grabbing if your monitor's original brick has died or gone missing, since off-brand versions can be hit or miss on voltage matching. Newegg carries it for LG display owners who'd rather not risk a generic adapter damaging their screen. Buy Now at Newegg

Data center admins maintaining Brocade 5300 switches will want this on hand as a replacement or backup, since matching the original manufacturer spec keeps power redundancy intact without hunting for compatible third-party parts. Newegg carries it if you need one shipped quickly. Buy Now at Newegg

Anyone whose Tonor K20 came without a working power supply or lost the original can swap this in without hunting for an exact manufacturer replacement. Buy Now at Newegg

Anyone setting up a PoE network for cameras or access points needs a reliable power source, and this open frame supply handles that job at 48V/200W without the extra housing you're paying for elsewhere. Newegg has it priced for what's essentially bare-bones industrial hardware, which suits DIY installers building their own enclosures more than someone wanting a plug-and-play box. Buy Now at Newegg

Handy for road trips or car camping, since it converts your vehicle's DC outlet into standard AC power for laptops or small appliances, plus a built-in USB port for charging phones on the go. It's currently priced at its $70 list price, so there's no discount to factor in right now. Buy Now at Best Buy

Anyone building out a 24V system, whether it's LED lighting or CNC equipment, needs a power supply that won't become the weak link, and this 100W unit gives you steady output without overpaying for capacity you don't need. Buy Now at Newegg

Off-grid setups and RV owners needing clean power for sensitive electronics will get the most use out of this, since pure sine wave output won't cause the humming or interference that modified sine inverters can. It's priced $10 below the $180 list. Buy Now at Amazon

Handy for keeping a fridge, CPAP, or power tools running during an outage, since the 1,843Wh capacity and 2,400W output can handle larger appliances that smaller stations can't. At $500, that's $260 off the $760 list price. Buy Now at Amazon

Anyone running DJ setups, small stage rigs, or moving head lights at home needs a power supply that won't quit mid-show, and this 450W unit gives you enough headroom for multiple fixtures without overloading the circuit. 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