The ASUS PRO551L (PU551L/PU551LA) is a laptop motherboard designed for Intel Core i7-4510U processors (4th Gen Haswell) in the REV 2.0 configuration. This compact motherboard features the Intel HM86 Express chipset and supports dual-channel DDR3L memory with frequencies up to 1600MHz across two SODIMM slots (maximum 16GB capacity). Storage conNECtivity includes one 2.5" SATA III 6Gbps interface and an mSATA slot for SSD expansion. Integrated Intel HD Graphics 4400 provides display output through the motherboard's LVDS/eDP interface, supporting resolutions up to 1920x1080. Networking capabilities include a Mini PCI-E slot for WiFi modules (supporting 802.11a/b/g/n standards) and a built-in Realtek Gigabit Ethernet controller. The board features standard laptop I/O including USB 3.0/2.0 ports, HDMI output, audio jacks, and a built-in card reader. Designed for ASUS PRO551 series laptops, this motherboard offers reliable performance for business and productivity applications with its military-grade components and stable power delivery system.