APC BE550G Back-UPS ES 550 8-Outlet 550VA 330W Battery Backup Surge Protector - Used

APC Back-UPS ES 550, model BE550G — 8-outlet battery backup and surge protector, 550VA / 330W, 120V 60Hz, with four battery-backup+surge outlets and four surge-only outlets and an attached NEMA 5-15P cord. **Application:** General 120V AC backup power for computers, monitors, networking gear, nav/chart PCs, and dockside shop or office electronics. Not a marine-rated or engine-room-rated device. **Condition:** Used, untested take-out. Case is dirty with light scuffs; outlets, power switch, LEDs and line cord all present and appear intact. Internal battery has not been tested and should be assumed at end of life — plan on a replacement APC RBC battery. Sold untested with no runtime or output verification. Buyer must confirm fitment by part number, photos, dimensions, engine model, serial number, and application before purchase. Used marine part sold as-is unless otherwise stated. No returns on electrical, used, special-order, or installed parts.