How to power up the new MacBook Air with touch Id
Touch ID
1.6GHz Dual-Core Processor with Turbo Boost up to 3.6GHz
128GB Storage
1.6GHz dual-core 8th-generation Intel Core i5 processor with Turbo Boost up to 3.6GHz
Retina display
8GB 2133MHz LPDDR3 memory
128GB SSD storage1
Intel UHD Graphics 617
Touch ID
Force Touch trackpad
Two Thunderbolt 3 ports

Or:

Touch ID
1.6GHz Dual-Core Processor with Turbo Boost up to 3.6GHz
256GB Storage
1.6GHz dual-core 8th-generation Intel Core i5 processor with Turbo Boost up to 3.6GHz
Retina display
8GB 2133MHz LPDDR3 memory
256GB SSD storage1
Intel UHD Graphics 617
Touch ID
Force Touch trackpad
Two Thunderbolt 3 ports