SK hynix 8GB DDR4 2666MHz Desktop RAM 1Rx8 PC4-2666V HMA81GU6CJR8N-VK Original | eBay
SK hynix 8GB DDR4 2933MHz Desktop RAM 1Rx8 PC4-2933Y HMA81GU6DJR8N-WM Original | eBay
SK Hynix HMA81GS6DJR8N-XN 8GB DDR4 PC4-3200AA-SE1-11 for XPS 9700 9500 X1 Carbon Extreme Gen 3 Alienware 51M R2 Asus Laptop (8GB DDR4 PC4-3200AA) at Amazon.com