Super Fast Operation, Ease of Use, Stand Alone Operation: 8, 16, 32 SlotsLinux Based, External Network Connectivity, UserTCL ScriptsOptional User Supplied LCD, key & Mouse 8 SATA slots DAC-1U-8-SATA 8 PCIE slots DAC-1U-8-PCIE 16 PCIE slots DAC-1U-16-PCIE