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This 1-meter QSFP SFF-8436 to SFF-8644 Mini SAS external copper DDR hybrid cable features professional 100-Ohm impedance calibration, delivering reliable high-speed signal transmission with minimal attenuation and crosstalk. Specially optimized for NetApp DS4243, DS4246 and DS2246 storage enclosures, it ensures seamless stable connection between servers and external storage arrays. Adopting premium pure copper conductors and multi-layer shielding structure, it effectively isolates electromagnetic interference and maintains consistent performance under 24/7 enterprise operating conditions. Precision gold-plated connectors provide tight locking contact and plug-and-play convenience. The 1M optimized length is perfectly suited for data center rack cabinet deployment, being a perfect replacement and upgrade cable for NetApp storage system external interconnection.