The 15V PoE Adapter from Ubiquiti Networ...
NEW OEM Power Supply Adaptor ADS0128-W12...
For the cost saving and power management...
EU 12V 2000mA 2A AC-DC Switching Adaptor...
The adapter of the HZS-532E-DE has a dual latch to prevent it from loosening. When the adapter is plugged into a slot, the dual latch would tightly fix the adapter, which is better than the single latch.