You cant really replace the Front Panel IO on towers, you would need to get a replacement part from coolermaster which given that's an older case I doubt they have. What you do have is a bunch of 5.25 inch expansion bays. Just go on Newegg, Amazon, etc and search for "5.25 expansion card reader" and you'll have a bunch of options. How they hook up to your motherboard can vary, most will hijack the USB headers or some can be used in conjunction with a internal USB port. PCIe Expansion cards exist that can add more headers such as this
https://www.amazon.com/PCI-Ports-Header-Express-Dual/dp/B07GSQR6D4 or others have internal USB ports.
Here is a 5.25inch expansion reader for example...