GRADE A1 - As new but box opened - ASUS K501UB 15.6 Inch i7-6500U 12GB 1TB + 16GB NVidia GeForce 940M Windows 10 64bit Multimedia Laptop - Grey Metal - Laptops Direct
ASUS K501U upgrade Samsung... - Aspiration Technology 宏愿科技| Facebook
Hard Drive and SSD K501UB | Official Asus Partner - Asus Accessories
Asus Storage SSD M.2 K501UB | Official Asus Partner - Accessoires Asus
Asus K501UB Core i5-6200U 8GB 1TB + 16GB 15.6" NO-OD Win 10 Nvidia 940M 2GB - Laptops Direct
The Asus K501UB laptop supports an M.2 SSD, but does it support a PCIe M.2 SSD? - Quora