Acer Aspire X1935 Acer Aspire X1935 Desktop Service Guide - Page 18

SATA Interface Item SATA controller Number of SATA channel Support mode USB Port Item Universal HCI USB Class USB Connectors Quantity Specification Intel B75 SATA X 3(2 * SATA 3Gb/s, 1 * SATA 6Gb/s) AHCI/IDE mode option Specification USB 2.0/1.1 or USB 3.0 Support legacy keyboard for legacy mode USB2.0: • Rear IO : * 4 ports • Internal Header: • *4 ports (2 * USB2.0 H5X2 Header) for B75 • All ports should meet USB IF spec and support 1A current over drive. USB3.0: Internal Header: * 2 ports. • One port support USB fast charging.(Meet USB battery charging spec. ver. 1.2. , Apple charging including ipad.) The other port support standard USB 3.0 downstream port. • Support fast charging in S0, S3, S4, S5, G3 to S5. • All ports should meet USB IF spec and support 2A capability for each port (S0). • reserve design for two USB 3.0 standard down stream ports. • Internal USB 3.0 H10x2 connector, follow the Industrial standard. • H2x1 with Vbus which is required to provide 3A current to front daughter board. • Charging IC is required for fast charger. (ODM proposed) • Rear IO: * 2 ports. • All ports should meet USB IF spec and support 2A capability for each port (S0). 10 Chapter 1