Is it compatible with synology nas ds220+ for safe shutdown, in case of power outage?

It is not on the Synology NAS list of compatible UPSs.

Will this power a Cpap machine? For how long?

I would not take a chance, it would not last very long...also i would not trust it, I bought 2 and one went bad the first week.

Si sirve para PS5 y para alimentar cualquier equipo electrónico que se conecte a un tomacorriente, se debe tomar en cuenta el consumo del equipo para saber el tiempo de respaldo que puede dar el UPS según su capacidad

What regulatory approvals does it have? e.g. UL, CSA, ETL

The product chassis are not marked with UL, CSA or ETL approval. As such, I do not think SKE Energy UPS’s have been tested by these companies. I own three 1250VA/750W units and they work as described by SKE. They have been operational for more than a year. They have supported my systems through many power issues.

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SKE SK425 425VA/240W UPS Battery Backup & Surge Protector - Uninterruptible Power Supply with LCD Display, AVR Voltage Regulation, 6 Outlets, Backup Power for PC, Router, NAS & Home Office

Product ID: 502077389

Details

Battery Cell Composition
Sealed Lead
Brand
SKE SMART KEY
Color
Black
Material
Metal
Voltage
120 volts

⚡425VA/240W power capacity

📊Real-time LCD system monitoring

🔋Sealed Lead Acid battery backup

Description

🔌 Power up your productivity—never miss a beat, even when the grid does!

QUIET CONTROLLED - Whisper-quiet operation with UPS management software ensures distraction-free work and safe shutdowns.
INSIGHT AT A GLANCE - Built-in LCD display delivers real-time updates on voltage, battery life, and load levels for proactive management.
VERSATILE CONNECTIVITY - 6 outlets including 4 battery-backed and 2 surge-only ports to safeguard and power all your essential devices.
SMART VOLTAGE STABILITY - Automatic Voltage Regulation (AVR) smooths out power fluctuations to protect sensitive electronics.
UNINTERRUPTED PRODUCTIVITY - Keep your home office and network devices powered through outages with 425VA/240W backup capacity.

The SKE SK425 UPS offers a reliable 425VA/240W backup power solution with AVR voltage regulation and a user-friendly LCD display. Designed for home offices and network setups, it features 6 outlets (4 battery-backed, 2 surge-only) and quiet operation supported by management software, ensuring your critical devices stay protected and powered during outages.

Specifications

ASIN	B0BJ68TST8
Amperage	2 A
Battery Cell Type	Sealed Lead Acid
Best Sellers Rank	#142 in Computer Uninterruptible Power Supply Units
Brand	SKE SMART KEY ENERGY
Color	Black
Customer Reviews	4.4 4.4 out of 5 stars (497)
Enclosure Material	Metal
Form Factor	Tower
Input Voltage	120 volts_of_alternating_current
Item Dimensions	12.4 x 3.94 x 5.63 inches
Item Weight	8.8 pounds
Manufacturer	SKE SMART KEY ENERGY
Maximum Power	240 watts
Model Number	SKE Back UPS
Number of Items	1
Number of Outlets	6
Output Current	2 A
Output Voltage	120 volts_of_alternating_current
Output Wattage	240 watts
Voltage	120 volts
Warranty Description	1 year for battery, 2 years for machine, against manufacturer
Wattage	240 watts

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