If you tell me what specific apps you use (like Final Cut, Photoshop, or Office), I can recommend which keys you might want to remap for better speed.
Because it was designed for Windows, the primary hurdles you will face are:
Now, the physical on your eMachines keyboard will function as the Mac Command key , and the physical Windows key will function as the Mac Option key . Troubleshooting Advanced Functionality and Media Keys
Once connected via a PS/2-to-USB converter, the basic QWERTY functionality will likely work instantly on any macOS version from High Sierra to Sonoma and beyond. The "driver" for this device is already embedded in macOS. How to Install and Use KB-0705 on Mac (Step-by-Step)
There is no official "KB-0705 Mac driver" because eMachines (which went defunct in 2013) never manufactured a single Mac product. You will not find a .dmg file on their old support site. But don't worry—here is how to make it work perfectly.
If you encounter issues during the installation process or your keyboard still doesn't work properly, try the following: