This product is currently back ordered. You can order it, but shipment may be delayed up to 2 weeks.
how much memory does it have? what is the latest OS it will be able to upgrade to? (can it upgrade to high sierra?)
The MacBook Air model MD711 has 4 GB of RAM, and 128 GB SSD hard drive. The device will be able to update to High Seirra if it does not already have it loaded on to the device.
Is it a touchscreen
The model MD711LL/A does not have a touch screen.