Temperature range  | Operating, 10°C to 55°C (50°F to 131°F)  | 
  | Storage,   | 
  | 
  | 
Relative humidity  | Operating, 10% to 90%; storage, 5% to 90%  | 
(noncondensing)  | 
  | 
  | 
  | 
RAID levels supported  | RAID 0 and 1+0; also RAID 5 if the cache is upgraded ("Upgrading  | 
  | the cache" on page 20) | 
Type of edge connector  | PCIe x8 (fits in slots that have a physical size of x8 or greater;  | 
  | operates at the speed rating of the slot, up to a maximum of x4)  | 
  | 
  | 
PCIe transfer rate  | Up to 1.0 GB/s full duplex  | 
  | 
  | 
Number of SAS ports  | Two internal wide ports; each port has four 1x connectors  | 
  | 
  | 
SAS transfer rate  | Up to 1.2 GB/s per port in each direction  | 
  | 
  | 
For more information about the controller features and specifications, and for information about system requirements, refer to the HP website (http://www.hp.com/products/smartarray).
Hardware features 6