Builtin IC chip design ensures stable signal transmission for longdistance server stacking connection; Crossinterface conversion between SFF8644 and SFF8087 for flexible storage expansion and server cascading; 28AWG lowloss copper wire with 10Ohm precise impedance matching supports steady 12Gbps bandwidth; 2meter extended length enables longrange routing in rackmount servers, JBOD enclosures and data centers; Black durable cable with antiinterference shielding, compatible with RAID controllers, HDDs and SSDs