You want to connect your new Midi-Tower with two USB 3.0 front connectors and internal USB 3.0 pin header (19pin) to an older motherboard, that doesn't have an internal USB 3.0 connector?
Then this...
This USB to USB-C� cable lets you connect your USB 3.0, USB Type-C� devices such as a hard drive, or mobile device to the USB Type-A port on your computer, charger or tablet.
The USB315AC1M from...
FAST CHARGING, QUICK SYNCING USB-C CABLES
Get a fast charge, up to 50% in around 36 minutes* with strong braided USB-C to USB-C cables that are built to last. Use them at home, in your car, or...