These TPMs use the Infineon SLB9665 chip
The 14-Pin is the equivalent of the official ASRock TPM2-SLI.
The 18-Pin is the equivalent of the official TPM2-S/INFINEON.
There are 2 variants for this TPM.
The Main Variant mounts with the Components facing towards the PCIe Slots.
The Reverse Variant mounts with Components facing away from the PCIe Slots.