**Premium 54V 3.9A 210W AC/DC Power Adapter Replacement for Ubiquiti UniFi Network Switches**
Up for sale is a brand new, uninstalled high-capacity 54V 3.9A AC/DC Power Supply Adapter brick (Amazon FNSKU: X001W8AGVP / LPN RR JM711). Specifically engineered to supply stable, clean high-wattage current overhead to demanding enterprise networking gear, this heavy-duty 210W transformer module acts as a seamless direct replacement or backup unit for high-performance PoE (Power over Ethernet) data systems.
**Key Technical Product Features:**
* **210W High-Efficiency Output Array:** Supplies a steady, high-amperage 54 Volt / 3.9 Amp power line configuration, engineered to confidently drive complex multi-device Power over Ethernet arrays without dropping network handshakes or experiencing brownout stalls.
* **Network Switch Compatibility:** Specifically mapped to fulfill the exact factory power thresholds required by Ubiquiti UniFi XG 6 PoE switches (US-XG-6POE), USW-Ultra line variants, and functions as a direct aftermarket alternative for factory brick codes ADS-210NX-48-1 and 540210E.
* **Integrated Safety Fail-Safes:** Internal control boards are fortified with over-voltage defense grids, short-circuit containment protection, and automatic thermal high-temp regulation paths to safeguard your expensive network stack.
**Item Condition Details:**
* **Overall Rating:** New warehouse overstock liquidation inventory.
* **Hardware State:** 100% brand new, factory fresh, clean, and uninstalled. The heavy power block brick and accompanying 3-prong C13 AC wall cable line remain entirely unused, pristine, and clean.
* **Packaging Note:** Housed within its original generic industrial brown cardboard box. The outer packaging displays standard, clean scan-ready Amazon asset tracking labels (LPN RR JM711) with typical mild warehouse handling edge creases and sorting marks as pictured.
