A:AnswerYes you can use an external hard drive. The PC is great for gaming, but an external hard drive has limitations. You can dowload games onto the drive but to get the best performance you need to run them off the 512GB SSD.
A:AnswerIn short, no. In order to upgrade to an AMD Ryzen, this pc requires a AM4 mobo. So yes you could upgrade but more then just the new cpu is needed
A:AnswerHere are the ports:
Front: 2 USB 3.1 Type A, 1 headphone/microphone combo
Rear: 1 USB Type-C™ 3.1, 4 USB 3.1 Gen 1, 1 USB 3.1 Gen 2, 1 audio-in, 1 audio-out, 1 microphone-in
Yes you can add a SSD.
Yes the DVD should perform well.
A:AnswerAccording to HP, this desktop comes with the NVIDIA GeForce RTX 2070 graphics card and Intel Core i7-9700K (3.6 GHz base frequency, up to 4.9 GHz with Intel Turbo Boost Technology, 12 MB cache, 8 cores). The graphics card is not the Super version.