AC/DC 48V3A Power Adapter, 48V 3A Power Supply Adapter 144W, DC 48V 3A Switching Power Transformers Interface 5.5 x 2.5mm for PoE Switch/PoE Injector Security Equipmentem

What you will get: One 48V DC power supply with a power cord, a one-year warranty, and helpful customer service.
^^ Input: 110V-240V 50 / 60Hz
Output: DC 48V 3A,;
DC interface size: 5.5 mm x 2.5 mm. 5.5 mm x 2.1 mm. ^^ It only works with most 48V PoE switches / PoE injector. Please confirm the power plug model before you buy it.
Protection function: overvoltage protection, overload protection, short circuit protection, overvoltage protection with stop and lock function, overcurrent protection with automatic reset function, brand-new durable product, to meet your needs.
^^ Warning: This adapter CANNOT be used for E-Bbike please! DO NOT use to all lithium battery products! NOT for electric bicycles, NOT for eBike with lithium-ion batteries, NOT balance car, NOT Ebike EMC-120 Lipo