HP 405831-001 Smart Array P400 PCI-Express SAS RAID Controller w/256MB Cache & BBU. Low Profile. Connectors on Back.@ SCSI4ME.COM
393847-B21 - HP 393847-B21 BATTERY MODULE WITH INTEGRATED CHARGER - NI-MH, 48V, 5000MAH - FOR USE WITH THE SMART ARRAY P400 AND P800 SAS CONTROLLER BOARDS WITH BATTERY BACKED WRITE CACHE (BBWC) -