 40GBASE-CR4 and 100GBASE-CR10 physical layers using 7 m twin-axial cable are being developed as part of the 100 Gbit Ethernet specifications by the IEEE 802.3bj workgroup; 100G QSFP28 DAC is the main type for this application.SATA 3.0 cables are implemented using Twinax (twinaxial cable).Many manufacturers of DisplayPort cabling are also using Twinax configurations to accommodate the strict insertion loss, return loss, and crosstalk requirements for the 2.7 Gbit/s signaling rate.