I need help on ASUS TUF Gaming A15

[alirafi321]

So basically i needed a laptop with gtx 1660ti and a good processor at 900 usd and i saw this laptop and its on sale rn, the only problem ive seen with this laptop is airflow .... 
My question is can i add a sata III ssd or an hdd 

ASUS TUF Gaming A15 - 15.6" FHD - AMD Ryzen 5 4600H - GeForce GTX 1660 Ti - 8 GB DDR4 - 512 GB SSD - RGB Keyboard 

• NVIDIA GeForce GTX 1660 Ti 6 GB GDDR6 Graphics (Base: 1455 MHz, Boost: 1590 MHz, TDP: 80W)
• AMD Ryzen 5 4600H Processor
• 15.6" FHD (1920 x 1080) 144 Hz IPS-Type display
• 8 GB DDR4 3200 MHz RAM
• 512 GB PCIe NVMe M.2 SSD
• Windows 10 Home
• Durable MIL-STD-810H military standard construction
• Self cleaning dual fans with anti-dust technology to extend system longevity
• RGB backlit keyboard rated for 20-million keystroke durability
• Easy Upgrade Doors: Easily add or replace memory and storage, Gigabit Wave 2 Wi-Fi 5 (802.11ac)
• Bundle: Get 30 days of Xbox Game Pass for PC with purchase (*Active subscription required; continues until cancelled; game catalog varies over time. Requires Windows 10; see details at xbox.com/pcgamesplan.)

[SupaKomputa]

I think so. Most laptop these days came with an empty HDD bay (even the cheap one) and some with another M.2 slot.