Cheap And Discounts For Lenovo Ideapad 330-15IKB 330-17IKB Used Motherboard With i7-7500 CPU + 4G RAM 5B20R16689 DG421 NM-B241 Mainboard Wholesale. Buy Directly From Merchant WangJie trading co. Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.