If your only need is a lot of bandwidth with very low server CPU use that’s fine.

That CPU is ancient, though. Over a decade old. That DRAM is 2-channel DDR3.

This could be a good deal for someone, but entrusting your startup’s operations to a 10 year old slow computer in Germany instead of using EKS would be an extremely short sighted move. A startup should be developing software and shipping it quickly to validate the market, not pinching pennies to save the equivalent of a couple hours of developer salary.