Hybrid converter cable bridges MiniSAS HD SFF8644 and QSFP 40G SFF8436 ports for server stacking & storage interconnection; Strict 10ohm impedance matching ensures stable signal integrity with low crosstalk for highspeed enterprise transmission; 28AWG thickgauge lowloss copper wire delivers consistent 12Gbps bandwidth for SAS storage and highspeed stacking applications; Black durable jacket with shielded construction minimizes interference in dense rackmount server environments; 2meter extended length supports longrange internal stacking and crosschassis connection in data centers