8204-E8A, IBM i Series Model 550, Power6+, 4966 (6-Core)

IBM i Series 4.2 GHz Dual Core Processor (4966): 2-Core = 9200 CPW, 4-Core = 18000 CPW, 6-Core = 23850 CPW, 8-Core = 32650 CPW
iSeries Memory: 1 GB - 256 GB (8 DDR2 memory DIMM slots)
L3 Cache: 32 MB
L2 Cache: 8 MB
iSeries Disk Drives: 2700 GB with 3.5-inch DASD or 1174.4 GB with 2.5-inch DASD. All hot pluggable.
 

Other features include:

Choice of three DASD options
   6 x 3.5-inch DASD backplane with no external SAS port (default)
   6 x 3.5-inch DASD backplane with an external SAS port (optional)
   8 x 2.5-inch DASD backplane with an external SAS port (optional)
Integrated Dual-port 10/100/1000 Mb Ethernet (Optional Quad-port or Dual-port 10 Gigabit Ethernet)
SAS/SATA controller
Two HMC system ports & Three USB ports
Redundant and hot-swap power (optional)
Redundant and hot-swap cooling
Deskside or rack-mount (4U) configurations
Two media bays:
    One slim bay for a DVD-ROM or DVD-RAM (one must be selected)
    One half-high bay for a tape drive (optional)
A maximum of five hot-swap slots:
    Two PCIe x8 slots, short card length
    One PCIe x8 slot, full card length
    Two PCIX DDR slots, full card length
    One GX+ slot (shares same space as PCIe x8 slot 2)
    One GX+/GX++ slot (shares same space as PCIe x8 slot 1)