Fake vs Genuine usb c apple cable

Fake and genuine apple usb c to lightning connection for fast charge I bought one shorter 1m from ebay for 9,99£ And 2m one from currys together with 63w apple fast charger usb c Do not buy from this seller https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fulk%2Fitm%2F113069905569