PER550 Server,no CPU(opt),3.5″ Chassis x8 Hot Plug HDD,no RAM(opt),iDRAC9 Ent,no HDD/SSD(opt),1xOCP 3.0,Riser 1×16 LP+1×8(x4)LP,PERC H755 8GB,Dual PSU(1+1)800W,TPM 2.0,LOM 2x1GbE,Rails,3Y NBD