How to replace HDD on SSD Lenovo Legion Y720, HDD replacement, SSD remove solution, DIY tourtial - YouTube
Lenovo Legion 5 RAM & SSD Upgrade - YouTube
New Original Sata Hard Disk Drive Line Ssd Hdd Cable For Lenovo Legion Y530-15ich Y540-15irh Y545 Y7000 Pg0 Y7000p Laptop - Pc Hardware Cables & Adapters - AliExpress
Yes, Legion 5 Pro has two NVMe PCIe 3.0 2280 SSD slots, the second slot is empty and has a pre-installed heatsink with a thermal pad. (I installed Samsung 970 Evo 1TB