CPU: Support 4th/5th Gen intel core CPUs (LGA1150) Chipset: Intel H81 Express Chipset. Memory: 2*240-pin DDR3 SDRAM Slots, Memory up to 16GB, Supports dual channel DDR3 1066/1333/1600/1866MHZ. I/O interface: 1 x PS/2 keyboard port, 1 x PS/2 mouse port, 2 x USB, compatible with USB 2.0 for H81-G335-P, 4 x USB, compatible with USB 2.0 for H81-G335-U, 2 x USB, compatible with USB 3.0, 1 x VGA port, 1 x HDMI port, 1 x RJ45 port, 1 x 3-in-1 Audio port. Onboard Interface: 1 x 24-pin ATX Connector, 1 x 4-pin ATX 12V power connector, 2 x USB Connector, can support 2 x USB 2.0, 1 x F_AUDIO Connector, 1 x F_PANEL Connector, 1 x SPEAKER Connector, 1 x FAN Connector, 2 x Serial SATA/6GB/S Connector port, 2 x Serial SATA/3GB/S Connector port, 1 x LPC DEBUG connector. Integrated Sound: With 6-channel HD Audio Codec onboard, Provides front audio interface; provides front stereo mic interface. Integrated LAN: With 10/100 Mbps LAN onboard Expansion Slot: 1 x PCI Express x 16 slots, 1 x 120-pin PCI slot Dimension: Micro-ATX architecture (17 x 19 cm)