Amazon with Basesailor Direct has the 4-Pack Basesailor USB-to-USB Adapters  (2x USB-C Male to USB-A 3.0 Female, 2x USB-A Male to USB-C Female) for $8.99 - $0.45 off coupon (check "Apply Coupon") - $4.50 off with coupon code 7C6HGOPR at checkout = $4.04 with free shipping on $35+ or with Prime.