B85M-E/CSM Haswell Corporate Stable Motherboard supports Intel Socket 1150 for 4th Generation Core i7/Core i5/Core i3/Pentium/ Celeron Processors Intel 22 nm CPU Intel Turbo Boost Technology 2.0; Intel B85 Chipset; 4 x DIMM Max. 32GB DDR3 1600/1333/1066 MHz Memory Dual Channel Memory Architecture; Integrated Graphics Processor Multi-VGA output support: HDMI/DVI-D/RGB/DisplayPort ports; Supports AMD Quad-GPU CrossFireX Technology; 1 x PCIe 3.0/2.0 x16 1 x PCIe 2.0 x16 (x4 mode) 1 x PCIe 2.0 x1 1 x PCI; Realtek 8111F 1 x Gigabit LAN Controller; Realtek ALC887-VD 8-Channel High Definition Audio CODEC; mATX Form Factor 9.6" x 8.4" (24.4 cm x 21.3 cm).