Choosing the best UPS for NAS and external drives involves balancing power capacity, runtime, and protection features. The CyberPower CP1500AVRLCD3 stands out as the overall best for its balance of capacity and usability, while the APC Back-UPS Pro Sinewave offers cleaner power for sensitive equipment. For those on a budget, the APC BE600M1 provides essential backup at a lower cost, but with limited runtime. The key challenge is finding a unit that offers enough power without overpaying for features you won’t use. Continue reading for a detailed breakdown of these options and what makes each one unique.
Key Takeaways
- Top picks balance power capacity with runtime to ensure NAS and drives stay operational during outages.
- Sinewave UPS models provide cleaner power, which is essential for sensitive NAS components and external drives.
- Budget options like the APC BE600M1 offer basic backup but limited runtime, suitable for small setups.
- Build quality and UL certification matter for reliable, safe operation over time.
- Consider additional features like LCD displays, USB charging, and surge protection based on your setup needs.
More Details on Our Top Picks
CyberPower EC850LCD Ecologic UPS Battery Backup and Surge Protector, 850VA/510W, 12 Outlets, ECO Mode, Compact, UL Certified
This CyberPower EC850LCD stands out for its compact size and energy-saving ECO Mode, making it ideal for small NAS setups or external drives where space and power efficiency matter. Compared to larger units like the APC BR1500MS2, it offers a lower capacity but still provides reliable backup for less demanding configurations. Its multifunction LCD displays real-time battery and power info, helping users monitor their system health easily. The inclusion of ECO outlets reduces energy consumption when devices are idle, which is a plus for eco-conscious buyers. However, with only 850VA, it might fall short for high-power NAS systems or multiple external drives running simultaneously, unlike the CyberPower CP1500AVRLCD3, which supports heavier loads. This model makes the most sense for users with modest NAS or external drive needs who prioritize space and energy savings.
Pros:- Compact size fits small spaces
- Eco Mode reduces energy costs
- Multifunction LCD offers detailed status info
- UL certified for safety
Cons:- Limited 850VA capacity may not support larger setups
- Fewer outlets than larger models
- No sine wave output, which may affect sensitive equipment
Best for: Small home NAS users or external drive setups with limited power needs and space constraints
Not ideal for: Power-hungry NAS systems or multiple external drives requiring higher VA capacity
- VA Rating:850VA
- Wattage:510W
- Outlets:12 (6 backup + surge, 6 surge only)
- Energy Saving Mode:Yes
- Display:Multifunction LCD
- Warranty:3 years (including battery)
Bottom line: Ideal for users with small NAS or external drive configurations seeking space-saving and energy-efficient UPS.
BUFFALO LinkStation 210 4TB 1-Bay NAS Network Attached Storage with HDD Hard Drives Included NAS Storage that Works as Home Cloud or Network Storage Device for Home
This Buffalo LinkStation 210 is tailored for simple home storage solutions, acting as a personal cloud with 4TB of included HDD space, ideal for backing up external drives or NAS devices like the CyberPower EC850LCD. Compared with dedicated UPS units, it offers a straightforward network storage experience without needing external power management, but it lacks an integrated UPS function, making it unsuitable for power backup needs. Its plug-and-play design with router connection makes sharing files across devices seamless, especially for those who want a centralized media hub. However, it doesn’t support uninterruptible power supply features, so it isn’t suited for protecting NAS or external drives during outages, unlike the APC Back-UPS Pro. This device makes the most sense for users seeking reliable storage and sharing over a home network, not for power backup.
Pros:- Pre-installed HDD included
- Easy setup as home cloud
- Secure file transfer with SSL encryption
- Supports multiple device backups
Cons:- No UPS or power backup features
- Limited to 4TB storage
- No support for enterprise or high-demand NAS systems
Best for: Home users needing centralized storage and media sharing without UPS requirements
Not ideal for: Users looking for power backup solutions for NAS or external drives during outages
- Capacity:4TB
- HDD Included:Yes
- Network Compatibility:Windows & macOS
- Support:24/7 US-based
- Form Factor:Desktop
- Warranty:2 years
Bottom line: Best suited for home storage and media sharing, not for uninterruptible power needs.
APC Back-UPS Pro Sinewave UPS, 1500VA/900W UPS Battery Backup & Surge Protector, AVR, 10 Outlets, LCD, USB-C Charging, UL Certified, BR1500MS2
The APC BR1500MS2 excels in supporting demanding NAS and external drive setups, with a robust 1500VA/900W capacity and pure sine wave output, making it excellent for protecting sensitive equipment like high-capacity NAS systems such as the CyberPower CP1500AVRLCD3. Its LCD provides real-time status on load and runtime, essential for managing large power loads. The 10 outlets, including surge protection and AVR, ensure comprehensive coverage for multiple devices, including network gear and external drives. Its 3-year warranty adds peace of mind. The main tradeoff is its larger footprint and higher price compared to smaller or less capable UPS models. This makes it perfect for users who need reliable backup for power-intensive NAS and external drives during outages, especially with high power demands.
Pros:- High capacity supports large NAS setups
- Pure sine wave output protects sensitive devices
- Large number of outlets with surge and AVR
- Real-time LCD display
Cons:- Larger size and weight
- Higher cost compared to smaller units
- Overkill for modest NAS setups
Best for: Power users with high-capacity NAS and multiple external drives requiring reliable UPS support
Not ideal for: Small NAS systems or users with limited space and lower power needs
- VA Rating:1500VA
- Wattage:900W
- Outlets:10 (including surge and AVR)
- Output:Pure sine wave
- Display:Color LCD
- Warranty:3 years
Bottom line: Best suited for demanding NAS and external drive environments needing dependable power protection.
CyberPower CP1500AVRLCD3 Intelligent LCD UPS System, 1500VA/900W, 12 Outlets, 2 USB Ports, AVR, Mini Tower, Black
The CyberPower CP1500AVRLCD3 offers a balanced mix of capacity and advanced features like Automatic Voltage Regulation (AVR) and a color LCD interface, making it ideal for NAS and external drive setups with moderate to high power demands. It supports up to 1500VA/900W, comparable to the APC BR1500MS2, but with a line-interactive topology that provides better power conditioning during minor fluctuations. The LCD displays real-time system info, helping prevent unexpected shutdowns. The two USB ports facilitate charging mobile devices without sacrificing power to connected NAS or drives. The 3-year warranty, including batteries, makes it a reliable choice. Its main tradeoff is slightly less sophisticated sine wave output compared to pure sine wave models, but it supports most NAS configurations well. This makes it suitable for users who want a feature-rich UPS that balances cost and performance.
Pros:- Supports 1500VA/900W loads
- Line-interactive topology with AVR
- Color LCD for real-time info
- Two USB charging ports
Cons:- Less sophisticated sine wave output than pure sine models
- Size may be bulky for small spaces
- No network management software included
Best for: Home or small office NAS users requiring reliable power conditioning and detailed status info
Not ideal for: Highly sensitive enterprise NAS or power-critical environments demanding pure sine wave support
- VA Rating:1500VA
- Wattage:900W
- Outlets:12
- Topology:Line-Interactive
- Display:Color LCD
- Warranty:3 years
Bottom line: Excellent for users needing reliable, feature-rich UPS support for NAS and external drives with minor power fluctuations.
CyberPower CP1500PFCLCD PFC Sinewave UPS Battery Backup and Surge Protector, 1500VA/1000W, 12 Outlets, AVR, Mini Tower, UL Certified
This CyberPower CP1500PFCLCD is tailored for NAS setups with active PFC power supplies, such as more advanced models like the APC Back-UPS Pro. Its 1500VA/1000W capacity with pure sine wave output ensures clean, reliable power, especially important for high-performance NAS and external drives. Its support for active PFC power supplies means it can handle more sophisticated, power-hungry systems without issues. The USB-C and USB-A ports allow fast device charging, and the LCD interface provides detailed real-time info on load and status. The AVR extends battery life by managing minor fluctuations. Its main drawback is the slightly higher cost compared to non-PFC models. Overall, it’s ideal for demanding environments where power quality is critical, and the system requires a pure sine wave.
Pros:- Supports active PFC power supplies
- Pure sine wave output for sensitive equipment
- USB-C fast charging ports
- Color LCD status display
Cons:- Higher price point
- Larger footprint
- Overkill for low-power NAS configurations
Best for: Advanced NAS systems with PFC power supplies and high power demand environments
Not ideal for: Basic external drives or modest NAS setups with low power requirements
- VA Rating:1500VA
- Wattage:1000W
- Outlets:12
- Output:Pure sine wave
- Display:Color LCD
- Warranty:3 years
Bottom line: Best suited for high-performance NAS and external drives needing premium power quality and PFC support.
APC UPS Battery Backup for Power Outages, 600VA/330W Surge Protector, 7 Outlets, USB Charging, BE600M1
This APC model stands out for its balanced combination of affordability, reliability, and ease of use, making it ideal for protecting essential devices like NAS and external drives in a home or small office setting. Compared to the UGREEN NAS UPS, it offers a higher surge protection rating and longer runtime at around 23 minutes for 100W loads, providing more confidence during outages. Its intuitive design allows quick battery replacement, reducing long-term costs, while the seven outlets—five with battery backup—cover multiple devices. However, the unit’s 600VA capacity may be insufficient for larger setups or multiple high-power devices, which could limit its scalability. The APC’s 3-year warranty and $75,000 equipment protection make it a trustworthy choice for protecting critical data and electronics. Ideal for users needing reliable, straightforward backup power for small to medium setups.
Pros:- Reliable, long runtime of up to 23 minutes at 100W load
- Easy to replace internal battery, lowering long-term costs
- Multiple outlets with surge protection and battery backup
Cons:- Limited capacity may not support larger NAS or multiple devices simultaneously
- No USB-C charging port, limiting compatibility with newer devices
Best for: Small business owners and home users who want dependable power backup with straightforward installation and maintenance.
Not ideal for: Users with larger or more power-intensive NAS systems that require higher capacity UPS units.
- Voltage:120 Volts
- Maximum Power:330 Watts
- Surge Protection Rating:490 Joules
- Outlets:7 (5 with battery backup, 2 surge-only)
- Runtime:23 minutes at 100W
- Battery Type:Sealed Lead Acid
Bottom line: This UPS offers a solid balance of features and reliability, making it perfect for small setups needing dependable backup power.
UGREEN NAS UPS, 120W DC Battery Backup & Surge Protector, 12000mAh
The UGREEN NAS UPS makes a compelling choice for users with specific UGREEN NAS models, thanks to its plug-and-play design and seamless power transfer. It’s especially suited for those who prioritize minimal footprint and quiet operation, as it runs silently and fits neatly alongside compatible NAS units like the DXP2800 or DH4300Plus. Its 120W capacity and 12000mAh battery provide about 10 minutes of backup, enough for safe shutdowns during short outages, but it’s not designed for larger systems or multiple connected devices. The built-in intelligent processor can notify users to save data and auto-restart NAS when power is restored, which adds a layer of data protection. However, this device’s compatibility is limited to certain models, and it lacks multiple outlets, restricting its use to a single device. Best suited for NAS owners who want a compact, reliable backup with automatic shutdown features.
Pros:- Seamless, zero-second transfer to backup during outages
- Compact, quiet design with easy installation
- Built-in intelligent processor for automatic safe shutdown and restart
Cons:- Limited to specific NAS models, reducing versatility
- Only one outlet, unsuitable for multiple devices
Best for: Owners of compatible UGREEN NAS models seeking a seamless, space-efficient backup solution.
Not ideal for: Users with larger NAS setups or who need to protect multiple external drives or network equipment.
- Voltage:12 Volts
- Amperage:10 Amps
- Battery Capacity:12000mAh
- Maximum Power:120 Watts
- Runtime:10 minutes
- Connector Type:USB
Bottom line: This UPS provides a highly reliable, automatic power support solution tailored for specific NAS models, ideal for small, dedicated setups.
How We Picked
I evaluated these UPS units based on their power capacity (VA/W ratings), runtime at typical load, build quality, and features such as surge protection and display interfaces. Reliability and UL certification were also key criteria, ensuring each product adheres to safety standards. I prioritized models that specifically support NAS and external drives, focusing on sinewave output for sensitive equipment and sufficient outlets for expandability. The ranking reflects a balance of performance, usability, and value, with the top picks excelling across these areas while addressing different user needs.Factors to Consider When Choosing Best UPS For NAS And External Drives
When choosing the best UPS for NAS and external drives, understanding a few core factors can help you avoid costly mistakes and select a unit that truly protects your setup. Power capacity, runtime, and the quality of power output are vital, but other considerations like expandability, ease of use, and safety features also play a role. Making the right choice depends on your specific setup, budget, and how critical uptime is to your data integrity. Here are some key factors to keep in mind:Power Capacity (VA/W)
Power capacity determines how much equipment a UPS can support during an outage. For NAS and external drives, a unit with at least 850VA is recommended to handle typical loads, especially if you want to run multiple devices simultaneously. Higher VA ratings provide more headroom for future expansion or additional peripherals, but they also come at a higher cost. Avoid undersizing your UPS, as it might shut down prematurely or not support your setup during extended outages.
Runtime
Runtime indicates how long your devices can stay powered during an outage. For NAS and external drives, a minimum of 10-15 minutes is advisable to save data and shut down gracefully. Cheaper units often offer short runtimes, which may only suffice for brief power blips. If your setup hosts critical data or runs 24/7, investing in a UPS with longer runtime ensures more reliable protection, even during extended outages.
Power Quality (Sinewave vs. Simulated Sinewave)
Sinewave output delivers clean, stable power ideal for sensitive electronics like NAS units, which can be damaged or operate inefficiently with modified sinewave power. Many budget UPS models produce simulated sinewave, which is acceptable for simple devices but not optimal for high-end NAS hardware. Choosing a sinewave UPS may cost more but can significantly extend the lifespan and reliability of your equipment.
Number of Outlets and Expandability
Assess how many devices you need to support now and in the future. A typical NAS setup might require multiple outlets for drives, routers, and switches. Look for units with enough outlets and consider models that offer surge protection for additional safety. Some UPSs also provide USB or Ethernet ports for network management, which can be useful for remote monitoring and control.
Additional Features and Safety Certifications
Features like LCD displays help monitor battery status, load, and runtime, allowing proactive management. UL certification assures safety and compliance with industry standards, reducing risks of fire or electrical faults. Other features like USB charging ports, automatic voltage regulation (AVR), and user-friendly interfaces can enhance usability, but they often come with higher prices. Decide which extras are worth the investment based on your setup’s complexity and criticality.
Frequently Asked Questions
How do I determine the right UPS capacity for my NAS?
Start by calculating your NAS and external drives’ total power consumption in watts, then choose a UPS with at least 20-30% more VA rating to accommodate startup surges and future upgrades. Most NAS units list their power draw in the technical specs, making it straightforward to select a unit that offers sufficient headroom. Remember, a larger capacity unit often provides longer runtime and more outlets, making it a better long-term investment.
Is a sinewave UPS necessary for NAS and external drives?
Yes, a sinewave UPS is generally recommended for NAS and sensitive external drives because it delivers cleaner, more stable power. Modified sinewave models can cause noise and inefficiency, potentially damaging your hardware over time or reducing lifespan. While sinewave units tend to be more expensive, they ensure your equipment operates smoothly and safely, especially during prolonged outages or voltage fluctuations.
What is the ideal runtime I should look for with a UPS for NAS?
Ideally, your UPS should provide at least 10 to 15 minutes of runtime to enable proper shutdown procedures and prevent data loss. Longer runtimes are preferable if you experience frequent or extended power outages, as they give you more time to save work and power down equipment safely. Consider your specific needs and choose a model with a capacity that supports your typical outage length, or consider a backup generator for longer outages.
Can I connect external drives directly to a UPS?
Yes, most external drives can be connected directly to a UPS, especially if they are powered externally. However, it’s best to connect only critical devices like NAS units and essential drives to the UPS to maximize runtime during outages. External drives often draw less power, so they place less load on the UPS, but always verify the power requirements to avoid overloading your unit.
How often should I replace my UPS battery?
UPS batteries typically last between 3 to 5 years, depending on usage, temperature, and maintenance. Regularly testing your UPS and monitoring battery age can help prevent unexpected failures. Replacing the battery before it fails—especially if your setup relies heavily on uptime—ensures continuous protection and prevents data loss during outages. Many models offer easy battery replacement to keep your system reliable.
Conclusion
If you’re seeking the best overall performance and reliability, the CyberPower CP1500AVRLCD3 makes a strong case, especially for medium-sized NAS setups. For those prioritizing clean power with a premium build, the APC Back-UPS Pro Sinewave is ideal. Budget-conscious buyers should consider the APC BE600M1 for basic backup needs. Beginners or small home users may find the UGREEN NAS UPS sufficient, while professionals needing maximum runtime and expandability should opt for larger models like the APC BR1500MS2. Your choice depends on your equipment’s power needs, the importance of clean power, and how much you’re willing to invest in safeguarding your data.
