This product is either discontinued or we cannot get that from suppliers.
ASRock H310CM-HDV LGA 1151 M-ATX Motherboard, Graphics Output Options DVI-D, D-Sub, HDMI, 7.1 CH HD Audio (Realtek ALC887 Audio Codec) / ELNA Audio Caps, 1x Gigabit LAN 10/100/1000 Mb/s, Micro ATX F F (19.1 x 18.8cm), LGA 1151 Socket Supports 8/9th Gen Intel CPUs , Intel H310 Chipset, 2x DIMM Slots DDR4 2666 , 1x PCIe 3.0 x16, 1x PCIe 2.0 x1, 4x SATA III 6Gb/s, 4x USB 3.1 Gen 1 (2 Front, 2 Rear).
ASRock applied ELNA audio capacitors on mainstream and entry-level motherboards! Compared with traditional solid caps, the leakage current of ELNA audio caps is merely 3uA.