Leplus USB-C to USB-A 3.0 Adapter
I bought the Leplus USB-C to USB-A 3.0 Adapter from Yodobashi Sapporo. Leplus, a brand by MSSolutions Japan, is relatively unknown, so it's cheap; I paid about S$11 after a tax-free discount.
Leplus
Leplus phone and computer accessories, including cables and adapters.