81
) So, with all that saved money, I'd suggest buying a small USB hub and some USB cables. The Hub will connect to one of your USB ports on the Mac. You can then connect other USB cables to the ports in the Hub and use them for additional external drives (including that pin drive) and any other USB device (Phone/iPad/Mouse/Touch Pad/etc.). Just make sure you know what types of ports are on the hub (older) USB A/B/3) or (newer) USB C. I assume (dangerous as that may be) the mouse uses a USB-C. The cable then needs to have whatever the Hub provides on one end and a USB-C on the other.
)