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
The Lenovo Legion Y90 to employ an SSD and UFS 3.1 storage in RAID 0 - GSMArena.com news
Lenovo Legion 5 15 inch - DIY adding an internal SSD - YouTube
Lenovo Legion 5 Upgrade SSD: Get Stepwise Guide Here
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
Can I add an extra SSD to my Lenovo Legion 5i laptop?
Lenovo Legion 5 Pro Disassembly (RAM, M.2 SSD upgrade options)