Onboard USB: 2 x USB Headers (Support 4 USB ports) (Supports ESD Protection (ASRock Full Spike Protection)) 1 x USB Header (Supports 2 USB. ASRock HM-HDV Motherboard Online. Key Features: Supports DDR4 SDRAM RAM, Supports Upto MB RAM, 8 Usb Ports. CHIPSET: INTEL H Intel Socket for 6th Generation Intel Core Processors. With ASRock’s DDR4 Non-Z OC users may overclock the memory of H/Q/B/H/C models using certain memory sticks, such as Kingston or Samsung memory DIMMs.