CyberPower CP550SLG 550VA / 330W Standby UPS System (Bare Chassis / No Battery)
Protect your homelab, router, switch stack, or desktop workstation from dirty utility power, voltage spikes, and sudden blackouts. This CyberPower CP550SLG standby uninterruptible power supply delivers a clean line of defense to keep your gear online and prevent ungraceful system shutdowns.
Hardware & Power Specifications
Capacity: 550 VA / 330 Watts
Topology: Standby / Simulated Sine Wave
Receptacle Array: 8× NEMA 5-15R Outlets
Data Line Protection: RJ11 / RJ45 In-and-Out surge suppression for phone, DSL, or network lines
Management Interface: Integrated USB-B port for PC/Server signaling (fully compatible with CyberPower PowerPanel and Network UPS Tools / NUT for Linux homelabs)
Status Monitoring: Power LED, Wiring Fault LED indicator, and audible alert buzzer
Testing & Hardware Status
Inverter & Board: Successfully powered on, line-sense verified, and tested under load.
Battery Compartment: Terminals are clean and free of acid corrosion. Wiring leads (standard F2-style spade connectors) are ready for your standard 12V 5.5Ah or 7Ah replacement cell (or your custom drop-in DC project).
Note: Battery is NOT included. You will need to install a compatible 12V battery prior to running on battery backup mode.
What’s Included
1× CyberPower CP550SLG 550VA Standby UPS (Chassis + Power Cord + Battery Leads)
1× Personalized, handwritten thank you letter from a fellow tech enthusiast
Shipping with Logistical Respect
- Impact Buffer: Wrapped in multiple thick layers of high-density bubble wrap to cushion the chassis, receptacle face, and internal solder joints from mechanical shock and drop vibrations.
- Surface & Puncture Armor: Over-wrapped in heavy-duty builder's paper to eliminate scuffs, prevent box abrasion, and shield corners from transit wear.
- Cable Management: Main power cord coiled with proper bend radii and secured to eliminate terminal strain and plug damage.
- The Personal Touch: Includes a personalized, handwritten thank-you letter safely placed inside with your gear.
Shipping: We provide free shipping via USPS Ground Advantage.
Returns: We accept returns within 30 days of purchase if your UPS arrives damaged or defective in any way.
Please don't hesitate to contact us if you have any questions or concerns. Thank you for considering our listing!
