The IBM® System x3750 M4 server: expansion from two to four processors The IBM System x3750 M4 blends outstanding flexibility, Extensive I/O bandwidth for greater performance, productivity and expandability. This Ultra-dense 2U, 4-socket server form factor optimized for performance and price. The unique 2+2 socket design enables pay-as-you-grow processing and memory expansion to help lower cost and manage growth. The 5+3 PCIe socket design allows you to pay for I/O capabilities as needed. The x3750 M4’s capabilities and performance allow clients to reduce total cost of ownership (TCO) by up to 52 percent over four years by consolidating multiple 2-socket servers into fewer 4- socket x3750 M4 servers. Key features: - Full support for Intel Xeon E5-4600 product family - Ultra-dense 2U, 4-socket server - 48 DIMM slots 1.5TB memory in a 2U form factor - Solid 1066 MHz RDIMM and LRDIMM performance - 2+2 processor socket design for pay-as-you-grow expandability - Mix-and-match internal storage with up to 16 HDD or 32 eXFlash drives - Optional Integrated 10GbE networking with a mezzanine option for fiber or copper interface - Up to 8 PCIe I/O slots with a 5+3 design