NOTE: be sure the type A adapters are rated USB 3.1 Gen 2 to ensure best performance.
The description on Amazon never mentioned anything about USB 3.1 or Gen 2. It's been ordered so let's hope they work.
If the USB protocol (
ie. USB 3.1 gen 2) is not specified it is safe to assume they are USB 3.0 and As far as I know Lightning connectors are USB 3.0.
So they will work but they will limit the throughput of the circuit to 5 Gbps. USB 3.1 gen 2 adaptors are capable of 10 Gbps and that can make a noticeable difference when connecting to higher speed devices such as external hard drives.