Section-37, Cable bundle 3, connecting to the I/O enclosure (1G3/1G4) Procedure Route cable bundle 3 left and right cable groups down to the I/O enclosure. Note: The cable group will not be fastened to the I/O enclosure cable tie bar. The SAS connector blue pull tabs must be up to connect the SAS cables to the I/O enclosure. See Figure 1. Figure 1. Locations, I/O enclosure SAS (Rear) Connect the green and yellow power cables.