Acer Timeline AS5810TZ-4657 Refurbished Notebook With 320GB hard drive space, the Acer Aspire Timeline AS5810TZ-4657 Refurbished Notebook PC provides ample storage Pinch, flick and swirl your fingers on the Multi-Gesture Touchpad for an intuitive Ease your mind and back up your data without a hassle with the Acer Backup Manager