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013548-001 HP SMART ARRAY P420I 6GB/S MEZZANINE CONTROLLER CARD FOR HP PROLIANT SL4540 G8 - FOR I/O MODULE NO CACHE 8GB/S BANDWIDTH SUPPORTS SAS / SATA PCI-E 3.0 X8
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Installing HP P420 smartraid controller on Workstation Z420 - HP Support Community - 7139435