1001Ever:
Should you prefer the traditional USB (A) ports over modern connective USB-C
perhaps an old model with near antique software could be located. Maybe one
that has been restored to function? With luck, older Mac includes system DVDs.
A few businesses offer older refurbished or repaired models; however beware.
Those generally are near end of life; without replacement hardware or batteries.
Sourced examples are still available online: https://duckduckgo.com/?t=ffab&q=mac+book+power+book+i+book+mac+book+pro+refurbished+used&ia=web
Or without further disparagement, study the more recent technological advances
and view articles of present adapter/connections to bridge the lack of information
between older and newer hardware; by use of this article. (among recent others)
See images of varieties of traditional to modern USB w/ variants, here..
The adapters and cables in this article work with these Mac computers:
- Mac models introduced in 2016 or later with Thunderbolt 3 ports or Thunderbolt / USB 4 ports.
These ports support both Thunderbolt 3 and USB-C connections.
- Mac models introduced in 2015 or later with USB-C ports.
These ports support USB-C connections.
• Adapters for the Thunderbolt 3 or USB-C port on your Mac - Apple Support
https://support.apple.com/en-us/HT207443
Many newer Macs require modern cables; if you need to use modern peripherals..
..Then a need for extra adapters may not be a big concern. Or be safe, get adapters.
• OWC Docks, Hubs, Docking Stations, and More
https://eshop.macsales.com/shop/docks
• Adapters - Power & Cables - Mac Accessories - Apple
https://www.apple.com/shop/mac/accessories/power-cables?page=1&f=adapter&fh=4595%2B45b0
Newer MacBook/Air + MB/Pro, uses USB-C power cable. This may keep you guessing.