Amazon.com: Lenovo Thinkpad X240 12.5 Ultrabook Premium Business Laptop Computer, Intel Dual-Core i5-4300U Up to 2.9GHz, 8GB RAM, 256GB SSD, WiFi, USB 3.0, Windows 10 Professional (Renewed) : Electronics
Lenovo ThinkPad X240 - Hard Disk Drive Replacement - iFixit Repair Guide