Designed for the O11D EVO case, the Lian Li O11D EVO Top I/O Kit relocates the ports of the I/O module. It replaces the original top aluminum strip with a top I/O port accessory made of the same materials as the case. By taking out the I/O cables from the I/O module (included with the O11D EVO case), they can be relocated to the top I/O kit. Please note that the audio/mic port needs to be placed towards the front of the case. For more information and directions, please visit the official Lian Li website.