This is a TPM 2.0 module which is required for Windows 11 use for ASROCK 18PIN LPC Key: prevent reverse insertion Please cut off the power to install the module, check the gap and then insert it. Some motherboard interfaces will not be used for a long time. If there is oxidation and rust, please polish it first. Find the corresponding location of the TPM plug. Package included: 1 x TPM 2.0 Module