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4475 oem mainboard products are offered for sale by suppliers on Alibaba.com, of which motherboards accounts for 51%, pcba accounts for 6%, and printing machinery parts accounts for 1%. A wide variety of oem mainboard options are available to you, such as no, usb 2.0 and usb 3.0.You can also choose from sata, ide and msata oem mainboard,As well as from new, stock oem mainboard, and whether oem mainboard is 128 gb, 64gb, or 32gb.