That's just it, I have no idea if it's bootable from your BIOS, that's something you have to ask Kingston and MB manufacturer.
This is what it says on the support page:
When attempting to boot from my Predator SSD, the BIOS states "The current BIOS settings do not fully support the boot device". How do I resolve this?
"Some motherboards require "Compatibility Support Module (CSM)" to be enabled in the BIOS in order to boot from a PCIe SSD. By default, this should be enabled. If it is disabled, please follow the BIOS instructions to resolve the issue or consult your motherboard manufacturer's documentation.
FAQ: KSD-070915-PRE-06"
It's here:
http://www.kingston.com/en/support/technical/products?model=SHPM2280P2
It may even be impossible to install OS on it. Same concerns are also for PCI/PCIe cards with SATA connections.