Acer Aspire E1-521 Acer Aspire E1-521 Notebook Service Guide - Page 12

Touchpad • Multi-gesture touchpad, supporting two-finger scroll, pinch, rotate, flip Media keys • Media control keys (printed on keyboard): play/pause, stop, previous, next, volume up, volume down Environment Temperature • Operating: 5º C to 35º C • Non-operating: -20ºC to 60ºC Humidity (non-condensing) • Operating: 10% to 90% • Non-operating: 5% to 95% Warranty • One-year International Travellers Warranty (ITW) Optional Accessories • 2/4 GB DDR3 soDIMM module • 65 W AC adapter • 6-cell Li-ion battery pack • HDD pack • CD-ROM Module 1-5 Hardware Specifications and Configurations