Plex Server Upgrade

My Plex Server is currently running on a low-end gear from 2015 and I plan on upgrading the whole server to a new one, a more powerful one, the one that can transcode on multiple threads.

Current Server Spec:

• CPU: Intel Core i3 4130 @ 3.40GHz
• GPU: NVidia GeForce GTX 750Ti
• Motherboard: Asus Vanguard B85
• SSD: 120GB Samsung
• HDD: 8GB (I plan to upgrade to more HDD)
• RAM: 16GB

Contents: (I keep on deleting content to make space for new ones)

• 4K: 50 Movies
• 1080p: 500 Movies
• TV: 150 series

There are rewards if anyone supports this.