MODEL: H81JEL, MOTHERBOARD GENERATION: 4TH, SERIES: H81, CHIPSET:INTEL, MEMORY: Support 2*DDR3 1600/1333 SDRAM, PORT: 4 SATA2 drives with speed up to 300MB/S, 1 PCI Express x16 slot 1 PCI Express x1 slot, 4 USB3.0 ports(2 at back panel, 1 USB 3.0 pinheader for 2 USB 3.0), 6 USB2.0 ports, 8 USB 2.0 (6 at back panel, 1 USB 2.0 pinheader for 2 USB 2.0)