What is the best Uninterruptible Power Supply (UPS)?

The "best" Uninterruptible Power Supply (UPS) depends heavily on what you are plugging into it—whether it’s a sensitive high-end gaming PC with an Active PFC power supply, a home router, or a full home office setup. Industry consensus across tech reviewers points to CyberPower and APC as the top brands, divided by specific use cases.

The top-performing UPS options categorized by user needs include:

- **Capacity:** 1500VA / 1000W
- **Why it’s great:** It features a **pure sine wave output** , which is critical for modern computers using Active PFC power supplies (simulated/stepped sine wave models can cause buzzing, overheating, or system shutdowns on high-end PCs). It also features Automatic Voltage Regulation (AVR) to correct minor voltage fluctuations without draining the battery, an informative LCD screen, and plenty of capacity to safely shut down a heavy rig during a blackout.[](https://www.youtube.com/watch?v=4tWSIX18GRk&vl=en&t=100) [[1]](https://www.youtube.com/watch?v=4tWSIX18GRk&vl=en&t=100)[[2]](https://www.youtube.com/watch?v=rSFOCMUda7s&t=486)[[3]](https://www.youtube.com/watch?v=w9Kr7et7XTw)

- **Capacity:** 1500VA / 900W
- **Why it’s great:** APC (by Schneider Electric) is a legacy staple for reliability. The Back-UPS Pro series offers robust AVR, strong surge protection, user-replaceable batteries, and a clear interface. While some models in this tier use a simulated sine wave rather than a pure sine wave, it handles general electronics, consoles, and mid-range PC setups brilliantly.[](https://www.youtube.com/watch?v=4tWSIX18GRk&vl=en&t=100) [[1]](https://www.youtube.com/watch?v=4tWSIX18GRk&vl=en&t=100)[[2]](https://www.youtube.com/watch?v=rSFOCMUda7s&t=137)[[3]](https://www.reddit.com/r/truenas/comments/1s86zem/reliable_ups_in_2026_thats_semi_affordable_apc_vs/)

- **Capacity:** Varies (850VA–1000VA)
- **Why it’s great:** If you don't need to power a massive monster PC and just want to keep your Wi-Fi router, modem, or a simple work laptop alive for hours during an outage, these smaller line-interactive units offer great value, built-in LCD status screens, and reliable surge protection without the high cost of a 1500VA pure sine wave unit.[](https://www.nytimes.com/wirecutter/reviews/best-uninterruptible-power-supply-ups/) [[1]](https://www.nytimes.com/wirecutter/reviews/best-uninterruptible-power-supply-ups/)

Key Factors to Keep in Mind:

• Pure Sine Wave vs. Simulated Sine Wave: If you have a modern desktop computer, home server (like a NAS), or high-end audio gear, always buy a Pure Sine Wave UPS (like the CyberPower PFC series). For simpler items like lamps, routers, or basic electronics, simulated sine wave is fine.
• Wattage, Not Just VA: Check the wattage (W) rating of the UPS, not just the Volt-Amps (VA). Your UPS wattage capacity must exceed the maximum draw of your equipment.

If you want to narrow this down, tell me:

• What specific devices are you planning to plug into the UPS?
• How long do you need the battery to keep things running during an outage?

I can recommend the exact capacity and model you need.

If you mean the best UPS for a typical home office, desktop PC, or gaming PC, my top pick right now is:

• CyberPower CP1500PFCLCD - $239.95 (Walmart - Staples)

🏆 Best overall: CyberPower CP1500PFCLCD

• 1500VA / 1000W
• Pure sine-wave output — important for modern PCs with active-PFC power supplies
• Automatic Voltage Regulation (AVR)
• LCD showing load, voltage, and estimated runtime
• 12 outlets, with 6 battery-backed
• USB connectivity for automatic PC shutdown
• Currently around $240 in the U.S.

For a gaming PC, workstation, NAS, or substantial home-office setup, this is the one I'd buy. Current 2026 comparisons consistently put it among the strongest choices in this class.

Good alternatives

• APC Back-UPS Pro BR1500MS2 - $299.99 (Walmart)

• APC BX1500M - $189.99 (Walmart)

• Eaton 5S1500LCD - $279.99 (newegg.com)

• CyberPower LX1500GAVR - $189.00 (Walmart)

• APC Back-UPS Pro BR1500MS2 — excellent premium choice; 1500VA/900W, pure sine wave, AVR, USB-C, and replaceable battery. Great if you prefer APC.

• APC BX1500M — good lower-cost option at roughly $190, but uses simulated sine wave, so I'd favor the CyberPower pure-sine model for a gaming PC.

• Eaton 5S1500LCD — solid choice for a small business or more IT-oriented environment.

• CyberPower LX1500GAVR — good value if pure sine wave isn't necessary.

What I'd choose by situation

One important point: don't choose based on VA alone. The watt rating is what ultimately limits what you can run. A 1500VA UPS typically provides around 900–1000W of usable output.

If you tell me what equipment you want to plug into the UPS (PC model/PSU, monitors, router, NAS, etc.), I can recommend the exact UPS size and estimate how many minutes of backup you'll get.

The "best" Uninterruptible Power Supply (UPS) depends entirely on what you are plugging into it—whether it's a high-end gaming PC, a home office router, or a full entertainment center. Industry testing and expert consensus highlight a few standout models depending on your specific needs:

Add to listAPC Back-UPS Pro 1500VA SineWave (BR1500MS) — Best overall for gaming PCs and high-end electronics. It provides pure sine-wave power output, which is crucial for modern computers with Active PFC (Power Factor Correction) power supplies. It features Automatic Voltage Regulation (AVR), plenty of capacity (9 0 0 W / 1 5 0 0 V A ), and user-hot-swappable batteries. You can view details on the APC Back-UPS Pro 1500VA SineWave Go to product viewer dialog for this item..

Add to listCyberPower LE1000DG / CP900AVR — Best value for home networks and general use. Praised frequently by outlets like The New York Times Wirecutter , CyberPower's mid-range line-interactive AVR units offer great runtime, reliable surge suppression, and a compact footprint without breaking the bank. Ideal for keeping Wi-Fi routers, modems, and basic desktop setups alive during a blackout.

Add to listAPC Back-UPS Pro BN1350M2 — Best runner-up for mid-range home offices. Offers 8 1 0 W / 1 3 5 0 V A with standard stepped approximation sine wave, integrated USB-A/USB-C charging ports, and reliable dataline (coax/ethernet) surge protection.

Quick Selection Guide

1. For Gaming PCs & Sensitive Hardware: Look for a Pure Sine Wave UPS (like the APC Pro 1500VA SineWave or CyberPower PFC Sinewave series). Modified sine wave units can cause buzzing or failure in sensitive modern power supplies.
2. For Wi-Fi Routers & Modems: A standard line-interactive AVR unit with lower capacity (6 5 0 V A to 1 0 0 0 V A ) is more than enough to keep your internet running for 30–60 minutes during an outage.

To help narrow down the exact model you need, tell me:

• What specific devices are you planning to plug into it (e.g., a gaming desktop, a NAS drive, a simple router)?
• How long do you need the battery to keep things running during an outage?

If you mean the best UPS for a typical desktop PC, gaming PC, home office, NAS, or networking setup, my top pick right now is the CyberPower CP1500PFCLCD.

• CyberPower CP1500PFCLCD PFC Sinewave UPS - $239.95 (newegg.com)

🏆 Best overall: CyberPower CP1500PFCLCD

It hits the sweet spot of capacity, pure-sine output, features, and price:

• 1500VA / 1000W
• Pure sine wave output — important for modern PCs with active-PFC power supplies and many NAS/server power supplies
• Automatic Voltage Regulation (AVR) for brownouts and voltage fluctuations
• 12 outlets, with 6 battery-backed
• LCD showing load, battery status, runtime, etc.
• USB connectivity for automatic computer shutdown
• Currently around $240, which is competitive for a 1500VA pure-sine UPS.

For most people, this is the one I'd buy.

Other excellent choices

• CyberPower CP1500PFCLCD - $239.95 (newegg.com)
• APC Back-UPS Pro BR1500MS2 - $344.01 (Walmart - Adorama)
• APC Smart-UPS 1500VA - $1,170.00 (Dell)
• Eaton 5S 1500VA - $332.03 (Best Buy)

The APC BR1500MS2 is a very good alternative and also provides pure sine wave, but it's currently considerably more expensive than the CyberPower in many listings.

For a server, NAS, homelab, or business, I'd step up to the APC Smart-UPS or an Eaton model. They're more expensive, but they're designed for more demanding environments and management requirements.

One important thing

Don't choose a UPS based only on VA. You also need to look at watts and your actual load. A 1500VA/1000W UPS is generally a very comfortable size for a desktop + monitors + networking equipment, but a high-end gaming PC under heavy load may require more.

If you tell me what you're plugging into it (e.g. gaming PC + 2 monitors, NAS + router, whole home office, server rack) and approximately how much power it uses, I can tell you exactly which UPS I'd buy and what runtime to expect.

If you mean the best UPS for a typical home office, gaming PC, NAS, or networking setup, my top pick in 2026 is:

CyberPower CP1500PFCLCD

$239.95

🏆 Best overall: CyberPower CP1500PFCLCD

Why I’d buy it:

• 1500VA / 1000W capacity
• Pure sine-wave output — important for modern PCs with active-PFC power supplies
• Automatic Voltage Regulation (AVR)
• 12 outlets
• LCD status display
• USB connectivity for automatic computer/NAS shutdown
• Currently around $240 in the U.S.

Recent 2026 comparisons consistently put the CP1500PFCLCD among the strongest choices for home offices and home networks, particularly because it combines pure sine wave with relatively low cost.

Other excellent choices

APC Back-UPS Pro BR1500MS2

$339.99

APC Smart-UPS SMT1500C

$865.27

Eaton Tripp Lite SmartPro 1500VA

$779.49

APC Back-UPS Pro BE600M1

$89.00

The APC BR1500MS2 is a particularly good alternative if you value APC's ecosystem and build quality; it is 1500VA/900W and pure sine wave.

One important point: don't buy based on VA alone

For a gaming PC, workstation, NAS, or server, watt capacity and waveform matter more than simply having a large VA number. A 1500VA UPS that can deliver 1000W is substantially more useful for a high-powered PC than a 1500VA unit limited to 700–800W.

For modern desktop PCs, I'd generally favor pure sine wave. It costs more, but it provides cleaner output and is the safer choice for systems with active-PFC power supplies.

My short answer: If you told me to buy one UPS today without giving me any other information, I'd get the CyberPower CP1500PFCLCD.

If you tell me what you're trying to protect (gaming PC, NAS, TV, router, whole network, server, etc.) and roughly how many watts it uses, I can narrow it down to the best UPS and the expected runtime for your setup.

The overall best uninterruptible power supply (UPS) for most desktop computers, home offices, and gaming setups is the [APC Back-UPS Pro 1500VA (BN1500M2) Go to product viewer dialog for this item.](https://www.google.com/search?ibp=oshop&prds=pvt:hg,pvo:29,mid:576462807219600896,imageDocid:15210372142526510990,gpcid:6759335878347753218,headlineOfferDocid:7662854513381328189,catalogid:13413928602259470753,productDocid:12876177313260863466,rds:PC_6759335878347753218%7CPROD_PC_6759335878347753218&q=product&sa=X&ved=2ahUKEwiwr7bL5rOWAxUJVqQEHRd_KucQxa4PeggIAggBCA0QAw) , which typically costs around $200 to $220.

The right UPS depends on your specific hardware load and device sensitivity.

Top UPS Recommendations

Key Factors to Consider

• Power Capacity (Watts): Ensure the UPS wattage rating is 20% to 30% higher than the total power draw of your plugged-in equipment.
• Sine Wave Output: Pure or true sine wave units (like the CyberPower CP1500PFCLCD Go to product viewer dialog for this item. ) are safer for modern high-end computer power supplies compared to simulated/stepped approximations.
• Topology Type: Avoid basic offline/standby UPS models; choose line-interactive models that feature Automatic Voltage Regulation (AVR) to correct brownouts and spikes without draining the battery.
• Battery Lifespan: Expect internal lead-acid batteries to last 3 to 5 years before needing replacement.

If you'd like, let me know:

• What devices you plan to plug into the UPS
• The wattage of your computer's power supply (PSU) or other equipment
• Your target budget

I can help you calculate the exact size and runtime you need.

There is no single "best" Uninterruptible Power Supply (UPS) because the right choice depends heavily on what you are plugging into it—a high-end gaming PC requires a very different unit than a simple Wi-Fi router or a small home office setup.

The top-performing and most reliable UPS models on the market are categorized below by use case:

Best for Gaming PCs & High-End Workstations: CyberPower CP1500PFCLCD Go to product viewer dialog for this item. ($190–$240)

• Why it’s great: It features a pure sine wave output , which is mandatory for modern desktop power supplies with Active PFC (Power Factor Correction). A simulated/approximated sine wave can cause active PFC power supplies to buzz, trip, or abruptly shut down when switching to battery . It delivers 1 5 0 0 V A/1 0 0 0 W , a multi-function tilting LCD, and 10–12 minutes of runtime under a heavy load.

Best Overall Alternative for PCs & Home Offices: APC Back-UPS Pro 1500VA (BR1500MS2 or BN1500M2)Go to product viewer dialog for this item. ($230–$300)

• Why it’s great: APC is legendary for reliability. This unit provides pure sine-wave output (on the MS2 variant), automatic voltage regulation (AVR) to correct brownouts without draining the battery, and handy USB-C/USB-A charging ports on the front. It’s an absolute workhorse for safeguarding expensive electronics and data.

Best Mid-Range / Budget Workstation Pick: CyberPower CP1350AVRLCD3 Go to product viewer dialog for this item. ($190–$200)

• Why it’s great: If you are running standard home office gear, basic monitors, and a laptop (which do not require a pure sine wave), this model offers robust AVR, 12 total outlets (6 battery-backed), and a helpful LCD screen at a lower price point.

Best for Wi-Fi Routers & Modems (Small Footprint): APC Back-UPS BE600M1 Go to product viewer dialog for this item. ($75)

• Why it’s great: You don't need a massive 1500VA tower just to keep your internet alive during a brief blackout. This compact, wall-mountable unit will keep a standard router and modem running for hours, preventing drops and letting you stay connected.

Key Buying Rules

1. Match the Wattage: Ensure the wattage (W W W ) rating of the UPS is higher than the maximum draw of your equipment.
2. Sine Wave vs. Simulated Sine Wave: Only buy Pure/True Sine Wave units if you are backing up a desktop computer with an internal power supply. Use cheaper simulated sine-wave models for routers, lights, and basic electronics.

To help narrow down the best exact model for your setup, tell me:

• What devices are you trying to protect (e.g., a gaming PC, a NAS, a Wi-Fi router)?
• Do you know the wattage of your equipment or your power supply?

If you want one UPS that is the best choice for most people, I’d buy the CyberPower CP1500PFCLCD.

CyberPower CP1500PFCLCD 1500VA/1000W

$239.95

🏆 Best overall: CyberPower CP1500PFCLCD

• 1500VA / 1000W
• Pure sine-wave output — ideal for modern PCs with active-PFC power supplies, NAS units, and sensitive electronics.
• 12 outlets, with 6 battery-backed
• Automatic voltage regulation (AVR)
• LCD showing load, battery, runtime, etc.
• USB connectivity for automatic computer shutdown
• Currently around $240 in the U.S.

Multiple current 2026 comparisons put this model at or near the top, particularly for a desktop PC, gaming PC, home office, NAS, or homelab.

Other excellent choices

CyberPower CP1500PFCLCD

$239.95

APC Back-UPS Pro BR1500MS2

$344.01

APC Smart-UPS SMT1500C

$865.27

Eaton 5P1500

$799.65

Best APC alternative — APC BR1500MS2:
A very strong choice if you prefer APC. It's also 1500VA pure sine wave, rated for 900W, with USB-C and a user-replaceable battery. I'd choose it over the CyberPower if you particularly value APC's software/ecosystem.

Best professional/server UPS — APC Smart-UPS SMT1500C:
Much more expensive, but a substantial step up for a server, network rack, business equipment, or serious homelab. It provides 1440VA/1000W, pure sine wave output, and substantially more sophisticated management.

Best premium/business option — Eaton 5P1500:
A business-grade option with 1440VA/1100W capacity. It's overkill for an ordinary desktop but attractive for heavier professional equipment.

What I'd buy by use case

One important point: don't choose a UPS solely by its VA number. For a modern desktop, pure sine wave + adequate wattage are more important. Also, a UPS is primarily intended to give you time to ride through short outages or shut down cleanly—not to keep a high-power PC running for hours. Typical 1500VA units provide only minutes at high loads.

If you tell me what you want to plug into it (PC wattage/model, monitors, NAS, router, etc.), I can recommend the exact UPS size and estimate how many minutes of runtime you'd get.

If you mean the best UPS for a typical home office, gaming PC, NAS, or networking setup, my top pick in 2026 is the CyberPower CP1500PFCLCD.

CyberPower GX1500U

$239.99

🏆 Best overall: CyberPower CP1500PFCLCD

It hits the sweet spot of 1500VA / 1000W, pure sine-wave output, AVR, 12 outlets, LCD monitoring, and replaceable battery. Multiple 2026 comparisons put it at or near the top for home-office and PC use.

Why I like it:

• Pure sine wave — important for modern PCs with active-PFC power supplies and a good choice for NAS/server equipment.
• 1000W capacity — enough for a substantial desktop + monitors + networking gear.
• 1500VA capacity.
• Automatic voltage regulation (AVR).
• 12 outlets, with 6 battery-backed.
• User-replaceable battery.
• LCD status display.
• USB connectivity for automatic computer shutdown.

APC Back-UPS Pro BR1500MS2

$273.00

CyberPower GX1500U

$239.99

APC Smart-UPS 1500

$1,379.21

CyberPower PR1500LCD

$916.24

Other excellent choices

The APC BR1500MS2 is particularly attractive if you prefer APC; it provides 1500VA/900W pure sine-wave output, USB-C, and a user-replaceable battery.

One important point

Don't choose a UPS based solely on VA. Watts and runtime matter more.

For example, if your gaming PC draws 500W while gaming and your monitor/network equipment adds another 100W, I'd want a UPS with at least ~900–1000W capacity, rather than a 600W model.

Also, a UPS generally isn't meant to keep a high-powered PC running for hours. Its main purposes are to bridge short outages, protect against power disturbances, and give you enough time to save your work and shut down safely.

If you tell me what you want to plug into it (e.g. gaming PC, TV, Starlink, modem/router, NAS, well pump, refrigerator, etc.), I can tell you exactly which UPS size and model I'd buy, including the expected runtime.

The "best" Uninterruptible Power Supply (UPS) depends heavily on what you are plugging into it—whether it’s a high-end gaming rig, a home network router, or a professional NAS device . The top-performing and most reliable units on the market fall into specific categories based on your needs:

Best Overall / Best for Gaming PCs: [CyberPower CP1500PFCLCD PFC Sinewave UPS Go to product viewer dialog for this item. ](https://www.homedepot.com/p/CyberPower-1500VA-120-Volt-10-Outlet-2-USB-UPS-Battery-Backup-CP1500PFCLCD/311903099) ($190 – $240)

• Why it's great: It delivers a true/pure sine wave output, which is critical for modern desktop PCs utilizing Active Power Factor Correction (PFC) power supplies. Cheaper simulated sine-wave units can cause active PFC power supplies to buzz, trip, or shut down entirely when switching to battery. With 1 5 0 0𝑉𝐴/1 0 0 0𝑊 of capacity, an informative LCD display, and plenty of outlets, it is the gold standard for consumer desktop protection.

Best Runner-Up / Alternative for PCs and Home Offices: [APC Back-UPS Pro 1500VA SineWave (BR1500MS2)Go to product viewer dialog for this item. ](https://www.bhphotovideo.com/c/product/1596645-REG/apc_br1500ms2_back_ups_pro_uninterruptible.html) ($300 – $340)

• Why it's great: APC is legendary for build quality and reliability. This line-interactive, pure sine-wave unit features Automatic Voltage Regulation (AVR) to smooth out brownouts without draining the battery, handy USB-C charging ports, and robust management software integration. It’s slightly more expensive than the CyberPower equivalent and has a minor 900 W 900 cap W 9 0 0𝑊 limitation, but it's exceptionally dependable.

Best Budget Option for Modems and Routers: APC Back-UPS 600VA (BE600M1)Go to product viewer dialog for this item. ($75 – $85)

• Why it's great: If you just want to keep your internet router and fiber box alive during an outage so your smart home or Wi-Fi stays functional, you don't need a massive tower. This compact, budget-friendly unit will keep a standard network gateway running for hours on a low draw.

Best Enterprise / Prosumer System: Eaton 9PX UPS Go to product viewer dialog for this item. (Price varies widely by tier)

• Why it's great: For small business server racks, critical network closets, or high-end NAS setups requiring double-conversion online power, Eaton is widely regarded as the most bulletproof brand in the industry, offering pristine power quality and advanced remote management.

Key Features to Check Before Buying:

1. Pure Sine Wave vs. Simulated Sine Wave: Essential for high-end electronics, gaming PCs, and hard drives. If your device has an active PFC power supply, buy a pure sine wave UPS.
2. Wattage (W) vs. Volt-Amps (VA): Always look at the wattage rating rather than the VA rating to ensure it can handle your equipment’s peak power draw under load.
3. Automatic Voltage Regulation (AVR): Fixes minor sags and spikes in wall voltage without constantly burning through battery life.

To help narrow down the ideal choice, tell me:

• What devices are you planning to plug into the UPS (e.g., a specific gaming PC, monitors, a NAS, or just a router)?
• Roughly how long do you need the battery to keep things running during an outage?