ATGBICS QSFP-4SFP10G-CU2M-HW compatible 40GBase QSFP+ to 4x10G SFP+ direct attach breakout cable operates over passive copper with a cable length of 2m. It is suitable for very short distances and provides a cost-efficient way to connect hardware within close proximity racks. This breakout cable connects to 1 x 40G QSFP+ port of a switch on one end and to 4 x 10G SFP+ ports of a switch on the other end. Our product meets or exceeds the specification of Huawei QSFP-4SFP10G-CU2M-HW= and we proudly offer a compatibility guarantee and lifetime warranty. Our rigorously tested products record a unique traceable serial number and are fully compliant with all MSA Standards and protocols including; 40G InfiniBand 8x DDR, 4x QDR, 10G/40Gigabit Ethernet, Fibre Channel. Connector A is QSFP+ MSA SFF-8436 Compliant and connector B is SFP+ MSA SFF-8431 Compliant.ndards and protocols including; 40G InfiniBand 8x DDR, 4x QDR, 10G/40Gigabit Ethernet, Fibre Channel. Connector A is QSFP+ MSA SFF-8436 Compliant and connector B is SFP+ MSA SFF-8431 Compliant.