HP ML370G4 X3.2 2P 128MB battery backed write cache (BBWC) module - for Smart Array 641 Ultra320 controller Smart Array 642 Ultra320 controller or Smart Array 6i controller - Does not include the batt..
HP ML370G4 X3.2 2P 128MB Smart Array 6402 Ultra320 SCSI controller - Two internal or two external Ultra320 SCSI channels - 133MHz PCI-X interface with RAID XOR engine - Does not include cache memory m..