Description

🔌 UPS CyberPower ST900U – 900 VA / 500 W

📌 Product description

The CyberPower ST900U UPS is a compact power protection and battery backup solution, designed to protect your sensitive electronic devices from power cuts, surges and grid fluctuations. It provides a stable power supply that enables safe shutdown of your equipment in the event of a failure.

Perfect for desktops, game consoles, routers/modems, network equipment or media centers, it combines security, energy efficiency and ease of use for all your home and office needs.

⚙️ Technical specifications

• Brand: CyberPower
• Model: ST900U
• Capacity: 900 VA / 500 W
• Topology: Standby UPS
• Output: Simulated sine wave
• Input voltage: 120 V AC ± 5%.
• Total sockets: 12 × NEMA 5-15R
  • 6 sockets with battery + surge protection
  • 6 surge sockets only
• USB ports: 2 Type-A ports for charging mobile devices
• EMI/RFI protection: Yes
• Surge filtering: Yes (890 joules)
• Software included: PowerPanel® Personal (monitoring via USB)
• Warranty: 3 years + connected equipment warranty $125,000 US
• ENERGY STAR® certification
• Design: Compact, quiet and efficient for the office or home

🔋 Autonomy & performance

Inverter autonomy is highly dependent on the connected load:

• 🟥 F ull charge (500 W): ~2minutes – enough to back-up and switch off your devices cleanly when the power is off.
• 🟨 Medium load (~250 W): ~6-8minutes – ideal for router, modem, thin PC or NAS for safe shutdown.
• 🟩 Reduced load (~100 W): ~15-30minutes – may be enough to keep your network active or complete a task before complete shutdown.
  (Note: These times are estimates based on typical specifications and tests for UPS of this type).

👉 F ull battery recharge: ~8 hours
👉 Battery type: Sealed lead-acid (not user-replaceable)
👉 Transfer time: ~8 ms (very fast to avoid visible interruptions)

🛠️ Benefits

• ✔ Provides reliable backup power in the event of an outage
• ✔ Protects your equipment against power surges
• ✔ Six fully battery-protected outlets
• ✔ Integrated USB ports for charging smartphones/tablets
• ✔ Easy-to-use PowerPanel® management software
• ✔ ENERGY STAR® energy-efficient design
• ✔ Solid warranty and connected equipment warranty

📦 Package contents

• 1 × CyberPower ST900U inverter
• 1 × USB management cable
• Instruction manual
• PowerPanel® Personal software