270-WS-W555-A1 | EVGA Classified Super Record 2 Motherboard

Performance
Based on Intel 5520/ICH10R chipset
Supports Dual QPI Socket 1366 Intel Xeon 5600 and 5500 Processors

Memory
12 x 240-pin DIMM sockets
Triple Channel DDR3
Maximum of 48GB of DDR3 1333MHz+
Expansion Slot
7 x PCIe x16/x8
Storage I/O
1 x UltraDMA133
8 x Serial ATA 2x600MB/sec / 6x300MB/sec with support for RAID 0, RAID1, RAID 0+1, RAID5, JBOD
Integrated Peripherals
8 Channel High Definition
2 x 10/100/1000
Multi I/O
2 x USB3.0 ports
10 x USB2.0 ports
Audio connector (Line-in, Line-out, MIC)
Form Factor
HPTX Form Factor
Length: 13.6in - 345.4mm
Width: 15in - 381mm
Notes:
EVGA is proud to present the EVGA Classified SR-2, the absolute ultimate for the extreme user. It takes everything that made the X58 Classified 4-way SLI motherboard great and doubled it up. Now you can experience the ultimate in overclocked multithreaded performance by way of Dual 1366 sockets which allow for hyper-threaded Intel Xeon CPUs to be combined together for massive amounts of workload to be spread across a multitude of processing threads.
Important note: a case with 9 or more expansion slots is required, 10 for 4-Way SLI. See this page for a list of compatible PC cases.