Lenovo Thinkpad E550 SSD and Memory Upgrade - YouTube
Amazon.com: 2nd HDD SSD Hard Drive Optical Frame Caddy Adapter for Lenovo ThinkPad E550 E550C E555 E560 E565 only with Bezel Front Panel Faceplate Metal Bracket Holder : Electronics
SSD Upgrade for Lenovo ThinkPad E560 256GB/512GB/1TB/2TB | eBay
Lenovo ThinkPad E570 Disassembly and SSD, HDD, RAM upgrade options