16GB (1X16GB) Mem Ram For Lenovo IdeaPad 320-15IKB/N 320-17IKB by CMS c107 | eBay
Used - Like New: NM-B451 Lenovo Ideapad 320-15IKB Intel Core I7-8550U CPU 4GB RAM Motherboard 5B20Q13060 Laptop Motherboards Security Locks & Accessories - Newegg.com
Nm-b452 For Ideapde Lenovo 520-15ikb 320-15ikb Notebook Motherboard With I3/i5/i7 8th Gen Cpu.gpu 2gb.ram 4g Ddr4 100% Test Work - Laptop Motherboard - AliExpress