Woot's CyberPower sale covers battery backups, surge protectors, and UPS systems for computers and home electronics. The CyberPower CST135UC 1350VA/810W UPS System is $109.99, down from $169.95, and the 950VA/510W Standby UPS is $59.99, down from $99.99. The lineup spans basic surge protectors starting at $14.99 up to higher-capacity rack-mount UPS systems near $700, including some factory reconditioned and refurbished models. This deal ends October 30. Buy Now at Woot! An Amazon Company

Network admins running stacks of PoE switches will want this for failover protection, since the redundant power array keeps critical gear online if one supply fails. Buy Now at Newegg

Rack-mounted setups benefit most here, since the 2U form factor slides right into a server cabinet instead of taking up floor space like a standalone unit. At 750VA, it's suited for keeping a modest server or networking rack running through short outages rather than powering heavier equipment. Buy Now at Newegg

Keeping servers or networking gear running through brief outages is the main job here, and the rackmount design makes it a sensible pick if you're already working with a server rack setup rather than standalone desktop equipment. Buy Now at Newegg

Worth a look for anyone maintaining server rooms or networking closets who needs a reliable replacement set for the Liebert GXT3 6000RT208 UPS, since getting all six batteries matched and dated together helps avoid uneven wear down the line. Buy Now at Home Depot

Keeps essentials like routers, computers, or medical equipment running through short outages, which matters if you work from home or can't afford a sudden power loss. It's $108 off the $720 list price, bringing it to $612. Buy Now at Amazon

Keeping servers or networking gear running through brief outages is the whole point here, and the rack-mountable 2U design makes it a sensible fit if you're already working with server cabinets instead of standard tower setups. Buy Now at Newegg

Keeping routers, cameras, or small network gear running during outages is the main job here, so it's worth a look if you've got low-voltage devices that can't afford a hard shutdown. The module switches between main and backup power automatically, which spares you the hassle of manually swapping sources when the electricity cuts out. Buy Now at Newegg

Keeping servers or networking gear running through a power blip is the whole point here, and the rack/tower design makes it easy to slot into a home office or small server closet without extra mounting hardware. Newegg has it for a price worth checking against what you'd pay for a comparable runtime elsewhere. Buy Now at Newegg

Running servers or networking gear off standard outlets calls for real protection, and this unit's online double-conversion design means your equipment never sees a power fluctuation since it's always running off the inverter, not just switching over during an outage. Buy Now at Home Depot

Power outages and brownouts won't take down your desktop or router thanks to the battery backup, which is worth having if you've ever lost unsaved work mid-storm. The 8 outlets give you room to protect a computer, monitor, and modem all at once instead of juggling a single battery slot. Buy Now at Newegg

Anyone maintaining backup power setups for alarm systems, emergency lighting, or UPS units can use this 6-pack to swap out aging batteries without reordering every few months, since replacing them all at once keeps your runtime consistent across the whole system. Buy Now at Home Depot

Keeping a rack of networking gear or security systems running during outages gets expensive fast if you're buying batteries one at a time, so this 10-pack makes more sense for anyone maintaining multiple UPS units. It's a practical bulk option for IT techs or building managers who'd rather stock up once than reorder every few months. Buy Now at Home Depot

Anyone running a home server or networking rack will appreciate this for keeping equipment running through short outages and giving you time to shut down properly during longer ones, thanks to the pure sine wave output that's safe for sensitive electronics. Buy Now at Newegg

Anyone running an APC SmartUPS unit for home network gear or server backup will want these on hand before the original battery dies mid-outage, since replacement is usually cheaper and faster than buying a whole new UPS. Buy Now at Home Depot

For anyone running networking equipment or servers who needs reliable backup power during outages, this UPS provides pure sine wave output and network management capabilities suited for small business or IT closet use. Newegg has it for $1003, which is $496 (about 33%) off the $1499 list price. Buy Now at Newegg