Acer Chromebook 11 311 C722-K4CN 11.6", Shale Black
Color - Exact: Shale Black. Model Number: 11 311 C722-K4CN. Lithium-Ion Battery with up to 10 hours of use. Battery Life (HRS): 10. Screen Refresh Rate (Hz): 60. Color - Generic: Black. Total USB 3.0 Ports: 2.