I built my Tower back in 2013...the only things I've replaced are the power supply (failed) and HDD to SSD.
Motherboard: Gigabyte socket 1150 handles 32GB of RAM
CPU... Quad Core model: Intel Core i5- min/max: 800/3600 MHz socket 1150
Graphics... NVIDIA GT218 [GeForce 210] vendor: Gigabyte driver: nouveau
RAM... 16GB DDR 3 2X 8GB sticks speed: 1600 MT/s each
Power Supply... Corsair 650W
Case... Cool Master N300 with 2 USB 3 ports at front and some USB 2 ports at the back...I added a 120mm fan to the top and a card reader with USB 3 port. Case came with 3.5” Drive Bays...had to buy several SSD brackets to fit SSDs.
1 Asus DVD Burner
1 Samsung 860 EVO 500GB SSD which replaced my 500GB HDD about 3 years ago
I always buy the biggest case possible...so there's plenty of room to move things in and out. I always buy Name brands...my power supply lasted 6 years.
I do have two SSDs and one HDD in the case but only one SSD running as I only use one at a time.