On the TriCaster Mini4K, the 4 port PCIe card does support PoE+ (802.3at). However, there is a 60 watt power budget for the card. This means that you can connect devices on all four ports and an ideal setting is either all 4 ports via PoE or two ports connected and supplying PoE+, or some combination of the two.
Each device is generally expected to consume power limits of about 15 watts for PoE devices or 25 watts for PoE+ devices.
Please note that for the PTZ1 camera, the max power draw is expected to be around ~25W although that will only value is achieved when the motor is engaged. If the camera is sitting stationary the power draw is significantly less.