Best UPS for Synology NAS – Reviews – Comparisons – Buyer Insight
A Synology NAS is only as reliable as the power feeding it. A sudden outage or brownout can interrupt writes, corrupt volumes, or trigger long RAID rebuilds. A properly sized UPS protects your NAS from power instability and gives DSM enough time to perform a clean, automated shutdown through USB or network UPS mode.
This guide compares the best UPS units for Synology NAS systems across real‑world setups. Each recommendation includes capacity, waveform type, runtime estimates, and connectivity so you can match a UPS to your NAS, router, and switches without overspending.
Best UPS for Synology NAS — Quick Comparison
This comparison table gives you a fast overview of the top UPS options for Synology NAS devices. It highlights capacity, waveform, and best‑use scenarios so you can quickly match a unit to your NAS and network gear.
| Model | Best For | Capacity | Output Type | Estimated Runtime* |
|---|---|---|---|---|
| CyberPower CP1500PFCLCD | 4–8 bay Synology NAS | 1500VA / 1000W | Pure sine wave | 10–25 min @ 100–200W |
| APC BR1500MS2 | High‑end NAS + switches | 1500VA / 900W | Pure sine wave | 10–20 min @ 120–200W |
| CyberPower EC850LCD | 2–4 bay NAS | 850VA / 510W | Simulated sine | 5–15 min @ 40–80W |
| APC Smart‑UPS SMT1000C | Business / rackmount Synology | 1000VA / 700W | Pure sine wave | 10–30 min @ 100–200W |
| Tripp Lite SMART1500LCDT | NAS + router + switch | 1500VA / 900W | Line‑interactive | 10–20 min @ 100–150W |
*Runtime varies based on drive count, RAID activity, and connected network gear.
Best UPS for Synology NAS by Scenario
Synology systems range from small 2‑bay home units to multi‑bay prosumer and rackmount devices. These recommendations cover the most common setups.
CyberPower CP1500PFCLCD
Definition: This category is for 4–8 bay Synology NAS systems that need pure sine wave output, long runtime, and USB HID compatibility for automated shutdown.
The CyberPower CP1500PFCLCD delivers 1500VA / 1000W of pure sine‑wave power, ideal for Synology NAS devices with multiple drives, expansion units, or attached switches.
| Capacity | 1500VA / 1000W |
|---|---|
| Output Type | Pure sine wave |
| Outlets | 12 total (6 battery + surge) |
| Best Use | 4–8 bay Synology NAS |
NAS Runtime: ~10–25 minutes at 100–200W (NAS + router + switch).
Pros
- Pure sine wave for stable PSU operation
- USB HID works with Synology DSM out of the box
- Excellent runtime for multi‑bay NAS
Cons
- Large and heavy
- Costs more than simulated sine units
APC BR1500MS2
Definition: This category is for mid‑range Synology NAS setups with 4–6 drives and attached network gear.
The APC BR1500MS2 offers 1500VA / 900W of pure sine‑wave power with excellent voltage regulation and USB connectivity for Synology shutdown automation.
| Capacity | 1500VA / 900W |
|---|---|
| Output Type | Pure sine wave |
| Outlets | 10 total (6 battery + surge) |
| Best Use | Mid‑range Synology NAS |
NAS Runtime: ~10–20 minutes at 120–200W.
Pros
- Pure sine wave for sensitive electronics
- Strong AVR for unstable power grids
- Reliable APC build quality
Cons
- Heavier than some CyberPower units
- Premium price
CyberPower EC850LCD
Definition: This category is for small 2–4 bay Synology NAS units that need basic protection and short‑runtime shutdown capability.
The CyberPower EC850LCD provides 850VA / 510W of simulated sine‑wave power, ideal for budget NAS setups.
| Capacity | 850VA / 510W |
|---|---|
| Output Type | Simulated sine wave |
| Outlets | 12 total (6 battery + surge) |
| Best Use | 2–4 bay Synology NAS |
NAS Runtime: ~5–15 minutes at 40–80W.
Pros
- Very affordable
- LCD shows load and runtime
- Great for small NAS units
Cons
- Not pure sine wave
- Limited runtime for larger NAS
APC Smart‑UPS SMT1000C
Definition: This category is for rackmount Synology NAS units, expansion bays, and business environments requiring SNMP or network UPS mode.
The APC SMT1000C provides enterprise‑grade pure sine‑wave power with optional network management cards for multi‑device UPS monitoring.
| Capacity | 1000VA / 700W |
|---|---|
| Output Type | Pure sine wave |
| Outlets | 8 total |
| Best Use | Business / rackmount Synology |
NAS Runtime: ~10–30 minutes at 100–200W.
Pros
- Enterprise‑grade reliability
- Optional SNMP for network UPS mode
- Pure sine wave for sensitive PSUs
Cons
- More expensive
- Heavier and larger
Tripp Lite SMART1500LCDT
Definition: This category is for Synology setups that combine NAS, router, and switches in the same power chain and need stable, regulated power.
The Tripp Lite SMART1500LCDT provides 1500VA / 900W of line‑interactive power with AVR, making it ideal for environments where both uptime and clean power matter.
| Capacity | 1500VA / 900W |
|---|---|
| Output Type | Line‑interactive |
| Outlets | 10 total (6 battery + surge) |
| Best Use | NAS + router + switch |
NAS Runtime: ~10–20 minutes at 100–150W combined load.
Pros
- Excellent for NAS + network gear combos
- AVR smooths out brownouts and voltage dips
- Strong reliability reputation in mixed racks
Cons
- Not pure sine wave on all variants
- Less ideal for ultra‑sensitive power supplies
Popular UPS Accessories for Synology NAS Systems
These accessories help you organize, protect, and optimize your Synology power chain for safer operation and easier maintenance.
Kill A Watt Power Meter
Measure your NAS’s real‑world wattage to size your UPS accurately.
| Type | Power meter |
|---|---|
| Use Case | Load measurement |
Short Ethernet Patch Cables
Clean up wiring between your NAS, router, and switch for better airflow and easier maintenance.
| Type | Cat6 patch cables |
|---|---|
| Use Case | Network closets and NAS racks |
Cable Management Kit
Keep UPS, NAS, and switch wiring tidy for better airflow and easier troubleshooting.
| Type | Cable management |
|---|---|
| Use Case | NAS and network racks |
Label Maker
Label battery vs. surge outlets and critical power runs so nothing gets unplugged by mistake.
| Type | Label printer |
|---|---|
| Use Case | NAS and network panels |
How to Choose the Best UPS for Your Synology NAS
Choosing the right UPS starts with knowing your NAS’s wattage. Most Synology units draw 20–60W idle and 40–120W under load depending on drive count, RAID activity, and attached devices. Add your router and switch wattage, then choose a UPS that can handle at least 2× your typical draw.
| Synology NAS Type | Typical Draw | Recommended UPS Size |
|---|---|---|
| 2–4 bay home NAS | 30–60W | 600–850VA |
| 4–8 bay prosumer NAS | 60–120W | 1000–1500VA |
| Rackmount Synology | 80–200W+ | 1000VA+ Smart‑UPS |
People Also Ask (Quick Answers)
Do I need a UPS for my Synology NAS
Yes — a UPS prevents data corruption, RAID rebuilds, and sudden shutdowns.
Does Synology support USB UPS shutdown
Yes — Synology DSM supports USB HID UPS units from APC, CyberPower, and others.
Can I use a simulated sine wave UPS
You can for small NAS units, but pure sine wave is recommended for stability.
How long should a UPS run my NAS
Most Synology systems need only 5–15 minutes to shut down safely.
Real‑World UPS Runtime Examples for Synology NAS
These examples show how long common UPS sizes can keep a typical Synology NAS running. Actual runtime depends on drive count, RAID activity, and connected network gear.
| UPS Size | NAS Load | Approx. Runtime |
|---|---|---|
| 850VA / 510W | 40–80W | 5–15 minutes |
| 1350VA / 810W | 80–120W | 10–20 minutes |
| 1500VA / 900–1000W | 100–150W | 10–25 minutes |
Common Mistakes When Choosing a UPS for Synology NAS
- Ignoring waveform type: Pure sine wave is best for NAS power supplies.
- Underestimating network gear load: Switches and routers add 10–30W.
- Not enabling Synology UPS shutdown: Always configure it in DSM.
- Overloading battery outlets: Reduces runtime drastically.
- Letting UPS batteries age out: Replace every 3–5 years.
FAQ: UPS for Synology NAS
Can I use a computer UPS for my Synology NAS
Yes — most Synology users run PC‑class UPS units with excellent results.
Will a UPS prevent RAID rebuilds
It prevents sudden shutdowns that trigger rebuilds, but cannot shorten rebuild time.
Should I leave my UPS on all the time
Yes — UPS units are designed to stay on and ready.
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